California Air Resources Board

Reference #  2023-23
Request:  Provide guidance on calculation methodology for cement mixer trucks utilizing power take-off (PTO).
Air District: South Coast Air Quality Management District (SCAQMD or district)
Guidelines Section(s): Chapter 4, Section B.6., Section C.2.(G)(4), Appendix C and D
ARB Action: Approved 

Determination:  South Coast Air Quality Management District seeks to fund the replacement of 14 cement mixer trucks fueled by diesel with an optional low NOx engine certified to the 0.02 g/bhp-hr NOx standard (Executive Order A-021-0736). The trucks are operated by sister companies Holliday Rock Co., Inc. and Commercial Rock Co., Inc. who share the same Truck Regulation Upload, Compliance, and Reporting System identification number. Holliday Rock Co., Inc. has seven trucks with baseline engines that are engine model year 2013. Commercial Rock Co., Inc. has seven trucks with baseline engines that are engine model year 2011. The gross vehicle weight rating (GVWR) for these trucks are over 33,000 lbs. A consistent amount of PTO is used in the mixing drum, which draws power from the engine during traveling and idling. Chapter 4, Section B.6. of the 2017 Moyer Program Guidelines specifies that emission reduction calculations must be based on factors provided in Appendix D. However, those emission factors do not include PTO usage. Per Chapter 4, Section C.2.(G)(4), cost-effectiveness calculations for projects with PTO will be considered by CARB on a case-by-case basis. Staff has determined that supplemental calculations based on fuel usage are needed. Emissions from PTO use can be accounted for based on EMFAC inventory and fuel usage data. The applicant provided annual mileage and hourly PTO usage documentation. Average fuel usage for cement mixer trucks based on the 2022 National Ready Mixed Concrete Association Fleet Benchmarking and Costs Survey will be used. The emission factors from Appendix D, Table D-2 will be applied to the annual mileage of the trucks. 
 
The following information will be used when calculating emission reductions: 
 
1. The PTO fuel usage rate: 0.64 gallons/hour (2.85 gallons/hour x estimated 22.5% PTO fraction of total fuel usage). 
 
2. The truck miles per gallon based on 2014 EMFAC data for each engine model year is shown in the table below: 

Heavy Heavy-Duty Truck Miles per Gallon (MPG) 

3. PTO Emissions (tons/yr) = Moyer Emission Factor (Table D – 2) (g/mi) * HHDT MPG (mi/gal) * 0.64 (gal/hr) * PTO usage (hrs/yr) * 1/907,200(ton/g) 

4. PTO emissions will be added to emissions calculated using mileage according to Appendix C, Formula C-5 in the Guidelines. 

This approval does not constitute a comprehensive review of the project nor the fleet’s compliance with applicable regulation(s) at the time of the district’s project approval or contract execution. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control rules, requirements, and regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database. 

Determination Date:  November 14, 2023
Contact: Telena Vo (951) 542-3407 

Reference # 2023-18
Request: Allow Sysco San Francisco, Inc. and US Foods, Inc. to use dealers located outside of California that do not have a valid business license issued in California (23MOY150 and 23MOY152). 
Air District: Bay Area Air Quality Management District (BAAQMD).
Guidelines Section(s): 2017 Carl Moyer Program Guidelines, Chapter 4 (Updated: 04/07/2022) Section C.7.(A)(1).
CARB Action: Approved.

Determination: BAAQMD received applications from Sysco San Francisco, Inc. and US Foods, Inc. to replace 45 heavy heavy-duty diesel trucks with 45 heavy heavy-duty electric trucks with associated infrastructure. Sysco San Francisco, Inc. is a global food distribution company that distributes food and non-food products to restaurants, healthcare, education facilities, and lodging establishments. US Foods, Inc. is a United States foodservice distributor, which partners with nearly 300,000 restaurants and foodservice operators. Both fleets have routes that go through disadvantaged and low-income communities.

According to 2017 Carl Moyer Program Guidelines, Chapter 4 Section C.7.(A)(1), dealerships and installers must have a valid business license issued in California for a minimum of the last two years. Due to Sysco San Francisco, Inc. and US Foods, Inc.’s fleet procurement policies, the applicants request to procure the replacement heavy heavy-duty trucks from dealerships located outside of California, who do not meet this guideline requirement. The dealerships are Houston Freightliner, Inc. located in Houston, Texas; Rush Truck Centers located in Atlanta, Georgia; and Doggett Freightliner located in North Little Rock, Arkansas. BAAQMD will ensure that the dealerships comply with all other applicable requirements per the Moyer Program Guidelines. The replacement heavy heavy-duty trucks that would be provided by these dealers will have California Executive Orders for Zero-Emission Powertrain Certification. The grant amount must be determined using emission factors and deterioration rates found in Table D-2 of the Moyer Program Guidelines for the baseline vehicles, and emission factors and deterioration rates of zero for the replacement vehicles.

This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effectiveness limits and all other applicable guidelines and statutes, and that all emission reductions are surplus to existing emission control regulations. The project information can be entered through the regular on-road vehicle replacement form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: October 12, 2023
Contact:  Telena Vo (951) 542-3407

Reference # 2023-17
Request: Allow one medium-duty diesel school bus to be replaced with a light heavy-duty (LHD) zero-emission electric bus and provide guidance on the emission factors to use for the baseline medium-duty diesel bus.
Air District: Bay Area Air Quality Management District (BAAQMD or District).
Guidelines Section(s): 2017 Carl Moyer Program Guidelines (Moyer Guidelines), Chapter 4 Sections C.1.(B)(1), C.1.(B)(2), C.2.(G)(1), C.4.(F), and C.5.(F).
CARB Action: Approved.

Determination: This revised determination supersedes the original determination with reference # 2021-06 posted on April 8, 2021 to reflect that the baseline medium-duty diesel school bus will be replaced with a light heavy-duty (LHD) electric school bus and the removal of the request to replace four LHD diesel school buses with medium heavy-duty (MHD) electric school buses.

BAAQMD received a request from Franklin-McKinley School District to replace five diesel school buses with five electric school buses, and to purchase associated charging infrastructure. The application includes replacing one medium-duty diesel school bus with a LHD electric school bus, as well as replacing four LHD diesel school buses with four LHD electric school buses. All school buses are equipped to serve special-needs students. This project will be funded with Community Air Protection incentives and the new school buses will operate within and benefit disadvantaged and low-income communities.

On-road projects to replace vehicles with a gross vehicle weight rating (GVWR) less than 14,001 pounds (lbs.) are required to be reviewed on a case-by-case basis per the Moyer Guidelines, Chapter 4, Sections C.2.(G)(1) and C.4.(F). Chapter 4, Sections C.1.(B)(1), C.1.(B)(2), and C.5.(F) of the Moyer Guidelines require that a replacement vehicle must be in the same weight class as the existing vehicle, and that a vehicle must be powered by an engine certified to the applicable intended service class as shown on the engine's executive order. One school bus (Bus #5) with a GVWR of 14,000 lbs. will be replaced with a zero-emission school bus with a GVWR within the LHD range (14,001-19,500 lbs.). The existing and replacement school buses all have the same axle and body configurations and comparable passenger capacity.

All cost-effectiveness calculations for this project will use on-road emission factors contained in Table D-1 in Appendix D of the Moyer Guidelines. This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines, statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: October 10, 2023
Contact: Telena Vo and James Qu

Reference # 2023-07
Request: Allow 19 medium-duty diesel school buses to be replaced with 19 light heavy-duty zero emission electric buses and provide guidance on the emission factors to use for the baseline medium-duty diesel buses (Project Number 23SBP53).
Air District: Bay Area Air Quality Management District (BAAQMD).
Guidelines Section(s): 2017 Carl Moyer Program Guidelines (Moyer Guidelines), Chapter 4 (Updated: 04/07/2022) Sections C.1.(B)(1) and C.2.(G)(1).
CARB Action: Approved.

Determination: BAAQMD received an application from Safetrans Transportation Inc to replace 19 medium-duty diesel school buses with 19 light heavy-duty electric school buses. Safetrans Transportation Inc is contracted with the East Side Union High School District and Silicon Valley Joint Powers Transportation Authority to provide transportation services for public school children. The project includes charging infrastructure, will be funded with Community Air Protection incentives, and will benefit disadvantaged and low-income communities.

Chapter 4, Section C.2.(G)(1) of the 2017 Carl Moyer Program Guidelines requires CARB to review on road vehicle projects with a gross vehicle weight rating (GVWR) less than 14,001 pounds (lb) on a case-by-case basis, and Chapter 4, Section C.1.(B)(1) requires that a replacement vehicle be in the same weight class as the existing vehicle. BAAQMD proposes to replace 19 buses with a GVWR of 12,300 lb with 19 zero emission buses with a GVWR of 14,500 lb. The range of available zero-emission school bus alternatives does not currently include medium-duty options, particularly due to the added weight of batteries and additional safety features that come standard on modern school buses.

As CARB’s mobile source emissions inventory treats school bus emissions the same regardless of size, grant amounts must be determined using the emission factors found in Table D-1 of the Guidelines and are included in the following table.

This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effectiveness limits and all other applicable guidelines and statutes, and that all emission reductions are surplus to existing emission control regulations. The project information can be entered through the regular on-road vehicle replacement form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: May 8, 2023
Contact: Kyle Goff, (279) 208-7811

Reference # 2022-31
Request: Allow four replacement heavy heavy-duty (HHD) school buses to be equipped with engines certified for use in medium heavy-duty (MHD) chassis.
Air District: San Diego County Air Pollution Control District (SDCAPCD).
Guidelines Section(s): 2017 Carl Moyer Program Guidelines (Guidelines) Chapter 4, Sections C.1.(B)(2) and C.5.(B).
CARB Action: Approved.

Determination: SDCAPCD is seeking to fund the replacement of four diesel school buses in the Escondido Union High School District. The four buses have a Gross Vehicle Weight Rating (GVWR) of 37,000 pounds (lb), placing them in the HHD range, but are equipped with 2001 and 2002 engines certified for use in MHD chassis. Similarly, the replacement buses will have GVWRs of 37,600 lb, also with 2022 model year engines certified for MHD use. Sections C.1.(B)(2) and C.5.(B) in the Guidelines require that the intended service class of a replacement engine must match the GVWR range of its chassis, but these school buses, like most that have been manufactured in recent years, come equipped with additional standard safety features resulting in a higher GVWR that goes beyond the ten percent flexibility currently allowed in the Guidelines.

Grant amounts must be determined using MHD emission factors and deterioration rates for both the baseline and replacement vehicles, contained in Table D-1 of the Guidelines and included in the following table:

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The project information can be entered through the Non-Calculation form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: September 28, 2022
Contact: Kyle Goff, (916) 324-1988

Reference # 2022-28
Request: Allow a United States Environmental Protection Agency (U.S. EPA) certified heavy heavy-duty (HHD) 2010 engine model year drayage truck replacement with a California Air Resources Board (CARB) certified HHD 0.02 NOx standard engine truck fueled by compressed natural gas (CNG).
Air District: South Coast Air Quality Management District (SCAQMD).
Guidelines Section(s): 2017 Carl Moyer Program Guidelines, Chapter 4 (Updated: 04/07/2022) Sections B.6., C.2.(D), C.4.(G)(1), and C.5.(A).
CARB Action: Approved.

Determination: SCAQMD received an application to replace one HHD drayage truck with a new HHD truck equipped with an engine certified to the 0.02 grams per brake horsepower-hour (g/bhp-hr) oxides of nitrogen (NOx) standard. The existing engine is a model year 2010 Detroit Diesel engine (Engine Family Name ADDXH14.8EEY), which only received certification from the U.S. EPA (Certificate number DDX-ONHWY-10-07). The baseline engine is certified to 0.142 g/bhp-hr NOx and 0.001 g/bhp-hr PM standards which meets the Drayage Truck Regulation and Truck and Bus Regulation required 2010 model year emissions equivalent engine standard prior to the January 1, 2023 compliance deadline. Chapter 4, Section C.2.(D) requires existing drayage trucks to have 2007 or newer engines to be eligible for funding, which the existing drayage truck meets. The replacement vehicle’s engine meets the requirements in Chapter 4, Section C.5.(A) and the Optional Advanced Technology cost-effectiveness limit parameters outlined in Appendix C with a natural gas fueled engine certified to the 0.02 g/bhp-hr NOx and 0.01 g/bhp-hr PM standard (Executive Order A-021-0736). Chapter 4, Section C.2.(D)(5) provides that this drayage truck replacement meeting the 0.02 g/bhp-hr NOx standard is eligible for funding NOx and ROG emission reductions.

The baseline vehicle’s 2010 engine only has certification from U.S. EPA rather than a CARB executive order. Chapter C.4.(G)(1) allows through a case-by-case basis for the air district to use alternative documentation as verification of the existing engine as is seen within this case where a CARB executive order is not available. Though Chapter 4, Section B.6 provides that the engine model year and applicable emission standard will determine the relevant emission factors in a project, the baseline vehicle engine is at a cleaner standard than the 2010 engine model year emission standard (0.2 g/bhp hr NOx standard) in Table D-2. This creates the need for the grant amount to be determined using the emission factors (EF) and deterioration rates (DR) closest to the emission standard of the baseline vehicle engine, accounting for the State Implementation Plan (SIP) creditable emission reductions that can be achieved by this project. The baseline vehicle engine is certified to the 0.142 g/bhp-hr NOx standard, making the EFs and DRs for the 0.1 g/bhp-hr NOx standard in Table D-2 the closest conservative values to the baseline vehicle engine NOx standard.

The replacement vehicle’s engine is a CNG engine certified to the 0.02 g/bhp-hr NOx standard which is exempt from the Drayage Regulation and Truck and Bus Regulation and is therefore surplus. This project is currently eligible for up to the 7-year project life. The following applicable emission factors (EF) and deterioration rates (DR) are to be used in cost-effectiveness calculations as shown in the tables below:

This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost effectiveness limits and all other applicable guidelines and statutes, and that all emission reductions are surplus to existing emission control regulations. The project information can be entered through the regular on-road vehicle replacement form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: August 24, 2022
Contact: Yadir Osornio, (951) 542-3332, and Cruz S. Munekata, (951) 542-3292

Reference # 2022-24
Request: Allow six medium-duty diesel school buses to be replaced with six light heavy-duty zero-emission electric buses and provide guidance on the emission factors to use for the baseline medium-duty diesel buses (Project Number 22SBP279).
Air District: Bay Area Air Quality Management District (BAAQMD).
Guidelines Section(s): 2017 Carl Moyer Program Guidelines, Chapter 4 (Updated: 04/07/2022) Sections C.1.(B)(1), C.2.(G)(1), C.4.(F), and C.5.(F).
CARB Action: Approved.

Determination: BAAQMD received an application from East Side Union High School District to replace six medium-duty diesel school buses with six light heavy-duty electric school buses. The project includes six special needs buses and charging infrastructure that will be funded with Carl Moyer Program funds. The project will benefit disadvantaged and low-income communities.

On-road vehicle projects with a gross vehicle weight rating (GVWR) less than 14,001 pounds (lb) are required to be reviewed on a case-by-case basis, per 2017 Carl Moyer Program Guidelines, Chapter 4, Sections C.2.(G)(1) and C.4.(F). Six buses (Bus #21, 26, 27, 53, 70, and 82), with a GVWR of 9,600 lbs. and engine model years ranging from 1999-2003 will each be replaced with a zero-emission bus with a GVWR of 14,500 lb. Chapter 4, Sections C.1.(B)(1) and C.5.(F) require that a replacement vehicle be in the same weight class as the existing vehicle, but the range of available zero-emission school bus alternatives does not currently include medium-duty options, particularly due to the added weight of batteries and additional safety features that come standard on modern school buses. The baseline and replacement equipment and engine specifications for the six buses are shown in the tables below.

As CARB’s mobile source emissions inventory treats school bus emissions the same regardless of size, grant amounts must be determined using the emission factors found in Table D-1 of the Guidelines and are included in the following table.

This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effectiveness limits and all other applicable guidelines and statutes, and that all emission reductions are surplus to existing emission control regulations. The project information can be entered through the regular on-road vehicle replacement form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: July 7, 2022
Contact: Kyle Goff, (916) 324-1988

Reference # 2022-23
Request: Allow a medium-duty diesel school bus to be replaced with a light heavy-duty zero-emission school bus (Project Number 2022-03).
Air District: Lake County Air Quality Management District (LCAQMD).
Guidelines Section(s): 2017 Carl Moyer Program Guidelines, Chapter 4, Sections C.1.(B)(1), C.2.(G)(1), C.4.(F), C.5.(F), and C.5.(G).
CARB Action: Approved.

Determination: LCAQMD is seeking to fund a Moyer Program on-road vehicle replacement project to replace a medium-duty diesel school bus at Middletown Unified School District with a light heavy-duty zero-emission replacement. The school bus to be replaced is equipped with a 2006 model year engine and has a gross vehicle weight rating (GVWR) of 14,000 pounds (lb). The zero-emission replacement school bus is equipped with a 2021 or newer model year electric motor and has a GVWR of 14,500 lb.

Chapter 4, Section C.4.(F) of the 2017 Carl Moyer Program Guidelines (Guidelines) requires baseline vehicles meet the criteria for light, medium, or heavy heavy-duty vehicles, except baseline vehicles with a GVWR between 8,501-14,000 lb may be allowed on a case-by-case basis per Chapter 4, Section C.2.(G)(1) of the Guidelines. Chapter 4, Sections C.1.(B)(1) and C.5.(F) require that a replacement vehicle be in the same weight class as the existing vehicle, but the range of available zero-emission school bus alternatives does not currently include medium-duty options, particularly due to the added weight of batteries and additional safety features that come standard on modern school buses. Chapter 4, Section C.5.(G) of the Guidelines requires that the replacement vehicle have the same axle and body configuration as the baseline vehicle, except that air districts may allow changes based on differences in technology. Due to the differing chassis size and the technology involved, the replacement equipment’s body and axle configuration need not match that of the baseline vehicle, provided that the replacement vehicle is capable of performing, and actually performs, the same work as the baseline vehicle.

As CARB’s mobile source emissions inventory treats school bus emissions the same regardless of size, grant amounts must be determined using the emission factors found in Table D-1 of the Guidelines and are included in the following table.

This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effectiveness limits and all other applicable guidelines and statutes, and that all emission reductions are surplus to existing emission control regulations. The project information can be entered through the regular on-road vehicle replacement form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: June 30, 2022
Contact: Kyle Goff, (916) 324-1988

Reference # 2021-12
Request:Allow a medium-duty diesel school bus to be replaced with a medium heavy‑duty zero-emission school bus (Project Number RUSD-BUS-18).
Air District:El Dorado Air Quality Management District (EDCAQMD).
Guidelines Section(s): 2017 Carl Moyer Program Guidelines, Chapter 4, Sections C.1.(B)(1), C.2.(G)(1), C.4.(F), C.5.(F), and C.5.(G)
CARB Action: Approved.

Determination:EDCAQMD is seeking to fund a Moyer Program on-road vehicle replacement project to replace a medium-duty diesel school bus at Rescue Union School District with a medium heavy-duty zero-emission replacement. The school bus to be replaced is equipped with a 1995 model year engine and has a gross vehicle weight rating (GVWR) of 9,600 pounds (lb). The zero-emission replacement school bus is equipped with a 2021 model year electric motor and has a GVWR of 25,500 lb.

Chapter 4, Section C.4.(F) of the 2017 Carl Moyer Program Guidelines (Guidelines) requires baseline vehicles meet the criteria for light, medium, or heavy heavy-duty vehicles, except baseline vehicles with a GVWR between 8,501-14,000 lb may be allowed on a case-by-case basis per Chapter 4, Section C.2.(G)(1) of the Guidelines. Chapter 4, Sections C.1.(B)(1) and C.5.(F) require that a replacement vehicle be in the same weight class as the existing vehicle, but the range of available zero-emission school bus alternatives does not currently include medium-duty options. Chapter 4, Section C.5.(G) of the Guidelines requires that the replacement vehicle have the same axle and body configuration as the baseline vehicle, except that air districts may allow changes based on differences in technology. Due to the differing chassis size and the technology involved, the replacement equipment’s body and axle configuration need not match that of the baseline vehicle, provided that the replacement vehicle is capable of performing, and actually performs, the same work as the baseline vehicle.

As CARB’s mobile source emissions inventory treats school bus emissions the same regardless of size, grant amounts must be determined using the emission factors found in Table D-1 of the Guidelines and are included in the following table. Note that the Particulate Matter emission factor and deterioration rate have been reduced by 85 percent since the baseline vehicle must be equipped with a diesel particulate filter per the requirements of the Statewide Truck and Bus Regulation.

This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effectiveness limits and all other applicable guidelines and statutes, and that all emission reductions are surplus to existing emission control regulations. The project information can be entered through the regular on-road vehicle replacement form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: September 1, 2021
Contact: Kyle Goff (916) 324-1988

Reference # 2021-10
Request:Allow El Dorado County Air Quality Management District to use Heavy Heavy-Duty (HHD) emission factors for the cost-effectiveness calculation to replace a HHD diesel school bus with a Medium Heavy-Duty (MHD) electric school bus (RUSD-BUS-8).
Air District:El Dorado Air Quality Management District (EDCAQMD).
Guidelines Section(s): 2017 Carl Moyer Program Guidelines, Chapter 4, Section C.1.(B)(1).
CARB Action: Approved.

Determination:EDCAQMD requests an exemption from the requirement that a MHD vehicle can replace a HHD vehicle with the same axle configuration but at the funding amount for the MHD level, for Rescue Union Elementary School District. The baseline diesel-powered bus being replaced has a Gross Vehicle Weight Rating (GVWR) of 36,200 pounds, an engine model year of 2013, and a capacity of 84 students. The MHD replacement electric school bus has a GVWR of 25,500 pounds and is a Class A school bus (Lion Electric Bus model LionA) that seats 24 students, including 1 wheelchair station. A gradual reduction in the number of students attending the school district over time allows for a smaller school bus to perform the same function as the original, much larger school bus. The replacement bus will fulfill the school’s transportation needs that were previously fulfilled by the bus to be scrapped. The smaller bus is wheelchair accessible and better able to navigate narrow roads and difficult turnarounds, making it possible to pick up more students from their homes.

Given that this is a zero-emission project, choosing a smaller replacement option while keeping the grant amount the same does not equate to a change in emissions reductions.

Grant amounts may be determined using heavy heavy-duty emission factors found in Table D-2 of the Moyer Program Guidelines, and are included in the following table:

This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines, statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: June 14, 2021
Contact: Kyle Goff (916) 324-1988

Reference # 2021-10
Request:Allow El Dorado County Air Quality Management District to use Heavy Heavy-Duty (HHD) emission factors for the cost-effectiveness calculation to replace a HHD diesel school bus with a Medium Heavy-Duty (MHD) electric school bus (RUSD-BUS-8).
Air District:El Dorado Air Quality Management District (EDCAQMD).
Guidelines Section(s): 2017 Carl Moyer Program Guidelines, Chapter 4, Section C.1.(B)(1).
CARB Action: Approved.

Determination:EDCAQMD requests an exemption from the requirement that a MHD vehicle can replace a HHD vehicle with the same axle configuration but at the funding amount for the MHD level, for Rescue Union Elementary School District. The baseline diesel-powered bus being replaced has a Gross Vehicle Weight Rating (GVWR) of 36,200 pounds, an engine model year of 2013, and a capacity of 84 students. The MHD replacement electric school bus has a GVWR of 25,500 pounds and is a Class A school bus (Lion Electric Bus model LionA) that seats 24 students, including 1 wheelchair station. A gradual reduction in the number of students attending the school district over time allows for a smaller school bus to perform the same function as the original, much larger school bus. The replacement bus will fulfill the school’s transportation needs that were previously fulfilled by the bus to be scrapped. The smaller bus is wheelchair accessible and better able to navigate narrow roads and difficult turnarounds, making it possible to pick up more students from their homes.

Given that this is a zero-emission project, choosing a smaller replacement option while keeping the grant amount the same does not equate to a change in emissions reductions.

Grant amounts may be determined using heavy heavy-duty emission factors found in Table D-2 of the Moyer Program Guidelines, and are included in the following table:

This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines, statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: June 14, 2021
Contact: Kyle Goff (916) 324-1988

Reference # 2021-06
Request: Allow one medium-duty diesel school bus to be replaced with a medium heavy-duty (MHD) zero-emission electric bus, allow four light heavy-duty (LHD) diesel buses to be replaced with four MHD zero-emission electric buses, and provide guidance on the emission factors to use for the baseline medium-duty diesel bus.
Air District: Bay Area Air Quality Management District (BAAQMD).
Guidelines Section(s): 2017 Carl Moyer Program Guidelines (Moyer Guidelines), Chapter 4 Sections C.1.(B)(1), C.1.(B)(2), C.2.(G)(1), C.4.(F), and C.5.(F).
CARB Action: Approved.

Determination: BAAQMD received an application from Franklin-McKinley School District to replace one medium-duty diesel school bus with an MHD electric school bus, four LHD diesel school buses with four MHD electric school buses, and to purchase associated charging infrastructure. All school buses are equipped to serve special-needs students. This project will be funded with Community Air Protection incentives and the new school buses will operate within and benefit disadvantaged and low-income communities.

On-road projects to replace vehicles with a gross vehicle weight rating (GVWR) less than 14,001 pounds (lb) are required to be reviewed on a case-by-case basis per the Moyer Guidelines, Chapter 4, Sections C.2.(G)(1) and C.4.(F). One school bus (Bus #5), with a GVWR of 14,000 lb will be replaced with a zero-emission school bus with a GVWR of 25,500 lb.

Chapter 4, Sections C.1.(B)(1), C.1.(B)(2), and C.5.(F) of the Moyer Guidelines require that a replacement vehicle must be in the same weight class as the existing vehicle, and that a vehicle must be powered by an engine certified to the applicable intended service class as shown on the engine's executive order. The 4 other school buses in this request to be replaced all have a GVWR of 14,050 lb, and will be replaced with 4 zero-emission school buses each with a GVWR of 25,500 lb. The baseline school buses are equipped with engines certified for use in LHD chassis, while the replacement vehicles’ electric motors are certified for use in MHD chassis.

The existing and replacement buses all have the same axle and body configurations and comparable passenger capacity. Due to the safety handling requirements of newer school buses, newer models equivalent to older counterparts are considerably higher in GVWR. Additionally, GVWR of these newer school buses must be higher still due to the configuration of the batteries and other necessary components for zero-emission operation that is not needed on conventional school buses. For these reasons, GVWR of the newer school buses must be considerably higher than the earlier models.

All cost-effectiveness calculations for this project will use MHD on-road emission factors contained in Table D-1 in Appendix D of the Moyer Guidelines. This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: April 8, 2021
Contact: Kyle Goff (916) 324-1988

Reference # 2021-02
Request: Allow Ventura County Air Pollution Control District to use Heavy Heavy-Duty (HHD) emission factors for the cost-effectiveness calculation to replace a HHD diesel school bus with a Medium Heavy-Duty (MHD) electric school bus (Project 21-071)
Air District: Ventura County Air Pollution Control District (VCAPCD)
Guidelines Section(s): 2017 Carl Moyer Program Guidelines, Chapter 4, Section C.1.(B)(1)
CARB Action: Approved

Determination: VCAPCD requests an exemption from the requirement that a MHD vehicle can replace a HHD vehicle with the same axle configuration but at the funding amount for the MHD level, for Moorpark Unified School District. The baseline diesel-powered bus being replaced has a Gross Vehicle Weight Rating (GVWR) of 48,400 pounds, an engine model year of 1988 and a capacity of 90 students. The MHD replacement electric school bus has a GVWR of 29,800 pounds and is a Class D school bus (IC Bus model CE2608) that seats 42 students, including three wheelchair stations.

A gradual reduction in the number of students attending the school district over time allows for a smaller school bus to perform the same function as the original, much larger school bus. The smaller bus is wheelchair accessible and better able to navigate narrow roads and difficult turnarounds, making it possible to pick up more students from their homes. It also includes an improved battery capacity and a longer warranty than the original HHD replacement. Because a HHD vehicle is getting scrapped, the HHD funding level is more representative of the real-world emission reductions taking place. Due to recent shifts in management priorities, the school district has determined that although the added incentive at the HHD funding level makes up for some of the difference, the increased total cost of the HHD bus is prohibitively high.

Given that this is a zero-emission project, choosing a smaller replacement option while keeping the grant amount the same does not equate to a change in emissions reductions, nor does it equate to a transformation of fleet duties. CARB staff feels that this project strongly supports the goals of AB 617. This project is in alignment with the goals of the Community Air Protection program to bring immediate emissions benefits to communities most heavily impacted by air pollution.

Grant amounts may be determined using heavy heavy-duty emission factors found in Table D-2 of the Moyer Program Guidelines, and are included in the following table:

This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: February 11, 2021
Contact: Hope Cupples (916) 324-1988

Reference # 2020-25
Request: Provide guidance on calculation methodology including appropriate emission factors for certified optional low-NOx school bus replacement engines fueled by liquid petroleum gas (LPG)
Air District: Bay Area Air Quality Management District (District)
Guidelines Section(s): 2017 Carl Moyer Program Guidelines, Chapter 4, Section B.6.
CARB Action: Approved

Determination: Bay Area Air Quality Management District received an application from Fairfield-Suisun Unified School District to replace 2 of their diesel school buses with cleaner LPG replacements certified to the optional low-NOx standard. The baseline school buses have gross vehicle weight ratings (GVWR) of 27,500 pounds (lb) and 25,500 lb, and are equipped with medium heavy-duty diesel-fueled engines with engine model years of 2002 (Executive Order A-004-0262) and 2006 (Executive Order A-004-0302), respectively. The replacement school buses have a GVWR of 30,280 lb and are equipped with engines certified to the 0.02 grams per brake horsepower-hour optional low-NOx standard. The replacement engines (Executive Order A-344-0106) are fueled by LPG. Chapter 4, Section B.6. of the 2017 Carl Moyer Program Guidelines specifies that emission reduction calculations must be based on factors provided in Appendix D which only provides factors for diesel and alternative-fueled engines.

Staff has determined the following points should be included when performing calculations for this project:

1. One of the baseline engines is certified to a family emission limit that exceeds the 2003-2006 emission standards but only diesel emission factors based on the actual engine model year contained in Table D-1 of the 2017 Carl Moyer Program Guidelines must be used, and have been included in the table below.
2. Considering that LPG engines operate similarly to gasoline spark-ignited engines and are certified to Otto-cycle standards and test procedures, emission factors for the replacement engines must be based on gasoline engines from 2014 EMFAC inventory data.  The medium heavy-duty vehicle category must be used.
3. Deterioration rates are not currently available for LPG engines.  Therefore, calculations will not include deterioration for the baseline or replacement vehicles.
4. The following emission factors should be used for the cost-effectiveness calculation.  Note that only zero-emission school bus projects are eligible for PM emission reductions.

This approval does not constitute a comprehensive review of the project. It is the District's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control rules. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: October 6, 2020
Contact: Kyle Goff (916) 324-1988

Reference # 2020-24
Request:  Allow four medium-duty diesel engine school buses to be replaced with four heavy-duty zero-emission engine school buses.  This project will be funded using Community Air Protection (CAP) Incentives
Air District:  Sacramento Metropolitan Quality Management District
Guidelines Section(s):  2017 Carl Moyer Program Guidelines, Chapter 4 Sections C.1.(B)(1), C.1.(B)(2), C.2.(G)(1), C.4.(F), and C.5.(G).  2019 Community Air Protection Incentives Guidelines, Chapter 2 Sections F, K and L; Appendix A, Section C; and Appendix B.
CARB Action:  Approved

Determination:  Sacramento Metropolitan Air Quality Management District is seeking to use CAP incentives to fund the replacement of four medium-duty diesel school buses with four medium heavy-duty zero-emission school buses at Folsom Cordova Unified School District (FCUSD).  FCUSD serves and has school bus routes with multiple stops within areas that have been designated as disadvantaged communities and low-income communities, as described in Assembly Bill (AB) 1550.

On-road vehicle projects with a gross vehicle weight rating (GVWR) less than 14,001 pounds (lb) are required to be reviewed on a case-by-case basis, per 2017 Carl Moyer Program Guidelines, Chapter 4, Sections C.2.(G)(1) and C.4.(F).  CAP incentives would be used to fund the replacement of 4 FCUSD diesel engine school buses with GVWRs of 10,000 lb or 12,000 lb.  These school buses will be replaced with 4 zero-emission school buses with GVWRs of 25,500 lb.  The baseline school buses are equipped with diesel engines with a model year range between 2000 to 2002 and have medium-duty intended service classes.  The 4 zero-emission replacement school buses will be equipped with 2020 model year electric motors having an executive order intended service class of heavy-duty.  Furthermore, the replacement vehicles will have the same axle and body configuration as the baseline vehicles (Chapter 4, Section C.5.(G)).  The California Air Resources Board has directed that zero-emission projects be prioritized whenever feasible, as noted in 2019 Community Air Protection Incentives Guidelines, Chapter 2, Section K.

Chapter 4, Sections C.1.(B)(1) and C.1.(B)(2) of the 2017 Carl Moyer Program Guidelines require that a replacement vehicle must be in the same weight class as the existing vehicle, and that a vehicle must be powered by an engine certified to the applicable heavy-duty intended service class as shown on the engine's executive order.  Due to the safety handling requirements of newer school buses, newer models equivalent to older counterparts are considerably higher in GVWR.  Additionally, the GVWR of these newer school buses must be higher still due to the configuration of the batteries and other necessary components for zero-emission operation that is not needed on conventional school buses.  For these reasons the GVWR of these newer school buses must be considerably higher than the earlier models.  Cost-effectiveness and emission reduction calculations will be made with the relevant emission factors pulled from 2014 EMFAC inventory data and referenced in Table D-1 of the 2017 Carl Moyer Program Guidelines, also included in the table below.  The baseline engines will use emission factors for the engine model year range 1998‑2002, and the replacement vehicles have zero emissions.

This project will use CAP incentives, and strongly supports the goals of AB 617. The project is located within an area that have been designated as both a disadvantaged community and low-income community and makes use of advanced technology and is consistent with project types supported by impacted communities. CAP incentives are intended to bring immediate emissions benefits to communities most heavily impacted by air pollution, and for the reasons outlined above, this project is a crucial part of realizing those benefits.

This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The project information can be entered through the Non-Calculation form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: October 6, 2020
Contact: Kyle Goff (916) 324-1988

Reference # 2020-17
Request: Allow Bay Area Air Quality Management District (AQMD or District) to proceed with the destruction of vehicle(s) and/or engine(s) without an agreement with the dismantler. Written consent by the District that all dismantler requirements and obligations met would remain on file for the life of the project.
Air District: Bay Area Air Quality Management District
Guidelines Section(s): 2017 Carl Moyer Guidelines, Chapter 4, Section(s) C.8(B)(1), C.6(B), and C.6(D)
ARB Action: Approved

Determination: Bay Area AQMD is requesting to allow the destruction of vehicle(s) and/or engine(s) without an agreement with the dismantler. Dismantlers within Bay Area AQMD jurisdiction have been reluctant to enter into an agreement as a qualified dismantler for the Carl Moyer Program (CMP), based on: low cost of scrap metal, the size of their lots, and the operational costs to manage the vehicles. As of today, only three qualified dismantlers service the entire District’s jurisdiction. One of these dismantlers does not accept School Buses, the other dismantler accepts a single piece of equipment on a monthly basis, and the third dismantler is expected to be removed as a qualified dismantler.

According to the 2017 Carl Moyer Guidelines, Chapter 4, Section(s) C.6(B), C.6(D) and C.8(B)(1) state to participate in the Program, dismantlers must, enter into an agreement with the air district. Due to the limited number of qualified dismantlers, Bay Area AQMD is requesting an exemption to the guidelines to allow the grantee, or a third party, to complete the destruction of the vehicle and/or engine along with the Air District’s written verification that all dismantler requirements and obligations will be met (prior to scrapping). California Air Resources Board staff has reviewed the documentation provided by the air district and determined that it meets the dismantler agreement requirements and obligations as outlined in Chapter 4, Section(s) C.8 of the 2017 guidelines. Written verification by the air district will remain on file for the life of the project(s).

This approval does not constitute a comprehensive review of the project. It is the District's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: May 21, 2020
Contact: Sondra Sala (916) 323-2738

Reference # 2020-16
Request: Allow South Coast Air Quality Management District (SCAQMD or District) to fund up to 31 zero emission transport refrigerant units (TRU) for McLane Company Inc.
Air District: South Coast Air Quality Management District (SCAQMD)
Guidelines Section(s): 2017 Carl Moyer Guidelines, Chapter 4, Section A.2(H) and Section C.2(G)3
ARB Action: Approved

Determination: The Moyer Program guidelines state that TRUs may be considered an eligible on-road project on a case-by-case (CBC) basis. The California Air Resources Board (CARB) approves the air district’s request to fund up to 31 zero emission TRUs from Advanced Energy Machines to replace 31 diesel fueled, 2014 model year, Tier 4 Final TRUs. TRU equipment is eligible to receive up to 50 percent of Moyer eligible costs.

The tables shown below are the baseline and replacement equipment’s emission factors (EF) and deterioration rates (DR). The information in this table include horsepower (HP), tier, oxides of Nitrogen (NOx) EF, NOx DR, reactive organic gas (ROG) EF, ROG DR, particulate matter (PM) EF, and PM DR. Emission Factor units are in grams per brake horsepower-hour (g/bhp-hr).

Baseline Equipment
 

Replacement Equipment
 

This project directly benefits, or is located within, a disadvantaged community, and it is consistent with project types supported by the community. Community members have identified TRUs as a specific source of emissions, and for the reasons outlined above, this project is a crucial part of realizing those benefits.

Please note that this approval is solely with regard to the item listed above and does not constitute a comprehensive review of the project. In addition, the District is responsible for ensuring that the projects conform to all applicable guidelines and statutes, including all co-funded guidelines, statutes, and co-funding limitations. Please include this case-by-case reference number in the comment field for the project in the CARL database.

Determination Date: May 20, 2020
Contact: Ken Bhatti (916) 323-2730, Telena Vo (626) 350-6530

Reference # 2020-14
Request: Allow a drayage truck with a model year 2006 dual-fuel engine to receive Moyer funds for replacement with an optional low-NOx engine (Project Number: #21CMP44)
Air District: South Coast Air Quality Management District (SCAQMD)
Guidelines Section(s): 2017 Guidelines, Chapter 4, Section A.2.(D), Section C.2.(D)(2), Appendix D Table D-2
ARB Action: Approved

Determination: SCAQMD received an application to replace one drayage truck with a new truck equipped with an engine certified to the 0.02 g/bhp-hr NOx standard. The existing engine is a model year 2006 Cummins ISX engine (Engine Family Name 6CEXH0912XAH) retrofitted with Westport Fuel Systems Inc.'s High-Pressure Direct Injection Natural Gas/Diesel Bi-Fuel Retrofit System, which received California Air Resources Board certification (Executive Order A-343-003). The applicant utilizes natural gas to fuel the engine. The engines are exempt from the Drayage Truck Regulation but are required to meet 2010 engine standards once they become subject to the Truck and Bus Regulation on January 1, 2023. The 2017 Guidelines require existing drayage trucks to have 2007 or newer engines to be eligible for funding, which aligns with the current requirement that all diesel-powered drayage trucks meet 2007 standards. However, since these natural gas-fueled engines are exempt from the drayage regulation, staff has determined that the model year 2006 engine is eligible for Moyer funding. The applicable surplus and emission factors to be used in cost-effectiveness calculations are shown in the tables below:

Baseline Vehicle
 

Replacement Vehicle
 

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control rules. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: March 24, 2020
Contact: Cruz S. Munekata (626) 459-4385

Reference # 2020-11
Request: Allow Los Olivos Elementary School District (LOESD) to replace a school bus equipped with a heavy heavy-duty (HHD) 2004 model year diesel engine with a new school bus equipped with a light heavy-duty (LHD) 2019 model year battery electric motor. (Project # AP192032 Los Olivos SD)
Air District: Santa Barbara County Air Pollution Control District (SBCAPCD)
Guidelines Section(s): 2017 Carl Moyer Program Guidelines, Chapter 4, Section C.1.(B)(1)
ARB Action: Approved

Determination: SBCAPCD requests an exemption from the requirement that a replacement on-road vehicle must be in the same weight class as the vehicle to be replaced. LOESD has applied for funds to replace a HHD diesel school bus equipped with a 2004 engine model year (EMY) with a new LHD school bus equipped with a 2019 model year battery electric motor. The baseline school bus is in HHD weight class based on its gross vehicle weight rating (GVWR) of 36,200 pounds (lbs), and its engine’s intended service class is listed in its executive order as medium heavy-duty. The replacement school bus will be in LHD weight class based on its engine’s intended service class of less than or equal to 19,500 lbs GVWR. Chapter 4, Section C.1.(B)(1) of the Moyer Program Guidelines requires that replacement vehicles must be in the same weight class as the existing vehicle.

The above requirement ensures that a replacement vehicle is capable of performing the same duties as the existing vehicle. The duty in this case is the transport of school children to and from school. Historically, the single school bus in LOESD’s fleet, with a capacity of 84 students, was used to perform that duty. However, a gradual reduction in the number of students attending the school district over time allows for a much smaller school bus to perform the same function as the original, much larger, school bus. Additionally, the bus routes cover rural roads where turnarounds are difficult in a larger bus.

The grant amount must be determined using emission factors found in Table D-1 of the Moyer Program Guidelines, and are included in the following table:
 

This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The project information can be entered through the Non-Calculation form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: March 4, 2020
Contact: Kyle Goff (916) 324-1988

Reference # 2020-01
Request: Allow Roseville City School District (RCSD) to replace two school buses, each having a gross vehicle weight rating (GVWR) of 30,000 pounds (lbs), with two school buses that have a higher GVWR (37,600 lbs). Also, allow one of the two replacement school buses (school bus #67) to have a greater horsepower (hp) rating (250 hp) than what the 2017 Moyer Guidelines allow.
Air District: Placer County Air Pollution Control District (APCD)
Guidelines Section(s): 2017 Carl Moyer Program Guidelines, Chapter 4 Section(s): C.1.(B)(1), C.1.(B)(2), C.2.(G)(6), C.4.(F)(2), C.5.(B), C.5.(E), C.5.(F) and C.5.(G).
ARB Action: Approved

Determination: Placer County APCD is seeking to fund the replacement of two RCSD school buses, which provide vital transportation within the school district to special needs students that have mental and/or physical disabilities.

This request is to replace two baseline school buses, bus #58 and bus #67. As result of the additional equipment needed to meet safety requirements the replacement school buses are a higher GVWR, greater than 33,000 lbs, than the baseline school buses (Chapter 4, Sections C.1.(B)(1) and C.1.(B)(2)). The first baseline school bus, bus #58, is a 2004 model year vehicle with a 210 hp medium heavy-duty diesel (MHDD) engine (GVWR 30,000 lbs). The second baseline school bus, bus #67, is a 1998 model year vehicle with a 190 hp MHDD engine (GVWR 30,000 lbs). Both of the school bus engines have been retrofitted with diesel particulate filters, and as such are in compliance with the Truck & Bus Regulation. The two replacement school buses will be 2019 model year 250 hp engines with a GVWR of 37,600 lbs certified to the MHDD service class.

Additionally, the replacement for one of the RCSD school buses, bus #58, exceeds the greater than 25 percent horsepower allowance in the 2017 Moyer Program Guidelines, but under limited situations the Guidelines allow an air district to approve a greater than 25 percent increase (Chapter 4, Section C.5.(E)). Bus #58 replacement school bus exceeds the greater than 25 percent horsepower requirement of the existing school bus by approximately 7 percent.

The manufacturer has submitted a letter that explains that the additional safety features and emission control system requirements that are now standard on newer buses, along with the wheelchair lift equipment and higher ground clearance requirements specific to these buses, are the reason for this increase in GVWR and the increase in horsepower beyond what the Guidelines allow. These features add to the weight of the buses and the additional weight requires more horsepower to compensate. In addition to the normally-required written warranty verification for an engine and chassis size mismatch, the manufacturer must supply the technical specifications requiring a larger chassis.

Grant amounts must be determined using medium heavy-duty emission factors and deterioration rates for the baseline vehicles, and heavy heavy-duty emission factors and deterioration rates for the replacement vehicles. The emission factors to be used are found in Table D-1 and D-2 of the 2017 Moyer Program Guidelines, and are included in the following table:

 

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The project information can be entered through the Non-Calculation form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: January 2, 2020
Contact: Deborah Paselk (916) 323-1534

Reference # 2019-19
Request: Provide guidance on calculation methodology including appropriate emission factors for certified optional low NOx replacement engines fueled by liquid petroleum gas
Air District: South Coast Air Quality Management District
Guidelines Section(s): 2017 Guidelines, Chapter 4, Section B.6.
ARB Action: Approved

Determination: South Coast Air Quality Management District received an application from Air Fayre, Inc. to replace three of their medium heavy-duty trucks with cleaner medium heavy-duty trucks. The baseline trucks have gross vehicle weight ratings (GVWR) of 31,000 pounds (lbs) and are equipped with medium heavy-duty diesel-fueled engines with the engine model year of 2008 (Executive Order A-021-0463). The replacement trucks have 31,000 lbs GVWR and are equipped with engines certified to the 0.02 grams per brake horsepower-hour optional low NOx standard. The replacement engines (Executive Order A-344-0096) are fueled by liquefied petroleum gas (LPG). Chapter 4, Section B.6. of the 2017 Moyer Program Guidelines specifies that emission reduction calculations must be based on factors provided in Appendix D which only provides factors for diesel and alternative-fueled engines.

Staff has determined the following points should be included when performing calculations for this project:

1. The baseline engine is certified to family emission limits that exceed the 2007 to 2009 emissions standards but only emission factors based on the 2007 to 2009 standards in Table D-1 will be used.

2. Considering that LPG engines operate similarly to gasoline spark-ignited engines and are certified to Otto-cycle standards and test procedures, emission factors for the replacement engines must be based on gasoline engines from 2014 EMFAC inventory data. The medium heavy-duty vehicle category must be used.

3. Deterioration rates are not currently available for LPG engines. Therefore, calculations will not include deterioration for the baseline or replacement vehicles.

4. The following emission factors (EF) should be used for the two-step calculation:

This approval does not constitute a comprehensive review of the project. It is the District's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control rules. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: November 26, 2019
Contact: Nancy Noble (626) 459-4495, Cruz S. Munekata (626) 459-4385

Reference # 2019-17
Request:
(1) Allow a diesel engine school bus with a gross vehicle weight rating less than 14,001 pounds (lbs.) to be replaced with a zero-emission technology engine school buses with the gross vehicle weight rating of 14,500 lbs.
(2) Allow four zero-emission school bus projects with infrastructure approved for Diesel Emission Reduction Act (DERA) funding, for which purchase orders have already been placed, to be co-funded with Community Air Protection incentives. (Bay Area Air Quality Management District Project Number 21SBP77)
Air District: Bay Area Air Quality Management District
Guidelines Section(s):
(1) 2017 Carl Moyer Program Guidelines (Moyer Program Guidelines), Chapter 4 Sections C.1.(B)(1), C.1.(B)(2),C.2.(G)(1),C.4.(F), C.5.(F), and C.5.(G). 2019 Community Air Protection Incentives Guidelines (CAP Guidelines), Chapter 2 Sections F, K and L; Chapter 3, Section G. and Y.4.; Appendix A Section C and G; and Appendix B.
(2) 2019 Community Air Protection Incentives Guidelines (CAP Guidelines), Chapter 2 Sections F, K and L; Chapter 3, Section G. and Y.4.; Appendix A Section C and G; and Appendix B.
ARB Action: Approved

Determination: The Mount Diablo Unified School District (MDUSD) has applied to the Bay Area Air Quality Management (BAAQMD) to fund the replacement of 16 diesel engine school buses all with zero-emission school buses. MDUSD is located within and serves areas that have been designated as disadvantaged communities and low-income communities, as described in Assembly Bill (AB) 1550. Five of these buses are seeking a case-by-case determination as detailed below.

(1) One school bus replacement project is a 1999 model year diesel engine with a gross vehicle weight rating (GVWR) of 10,000 lbs. On-road vehicle replacement projects that have a baseline vehicle of less than 14,001 lbs GVWR must be reviewed on a case-by-case determination, per Moyer Program Guidelines Chapter 4, Sections C.2.(G)(1) and C.4.(F). This bus will be replaced with a model year 2019 zero-emission engine and a GVWR of 14,500 lbs., which is in alignment with the California Air Resources Board (CARB) direction to be prioritize zero-emission projects whenever feasible, as noted in 2019 Community Air Protection Incentives Guidelines, Chapter 2, Section K.

Newer school buses have additional equipment for safety, which result in greater GVWR than older school bus models serving a similar function. Based on the Moyer Program Guidelines provision where a vehicle with a medium heavy duty (MHD) engine can replace one with a heavy-heavy duty (HHD) engine if they both have the same axle configuration, but the funding amount must be at the MHD funding level (Moyer Program Guidelines, Chapter 4, Section C.5. (F)); this bus too has the same axle configuration and funding level as the higher weight class. This school bus will not be co-funded.

Grant amounts must be determined using medium heavy duty emission factors found in Table D-1 of the Moyer Program Guidelines, and are included in the following table:

(2) San Joaquin Valley Air Pollution Control District is managing a DERA grant. After awarding MDUSD funding to replace four diesel school buses with four 2019 model year zero-emission engine school buses, the school district ordered the buses. The original match funding was to use Hybrid and Zero-Emission Truck and Bus Voucher Incentive Project (HVIP) funds but it was later determined not an appropriate pairing to serve as match. Hence, in order to meet the DERA funding deadline and matching requirement MDUSD has applied for BAAQMD Community Air Protection (CAP) incentives project funding.

The CAP Guidelines do not allow an applicant to order a new vehicle nor fund certain infrastructure eligible costs prior to approval by the governing board or board designee (Chapter 3, Section Y.4.). This project is going before the BAAQMD Governing Board in late November with the approval contingent on this case-by-case evaluation to allow the district to fund vehicles already on order for this specific case. These school bus projects will use CAP incentives, and strongly supports the goals of AB 617. All co-funding provisions from the CAP Guidelines must be followed (Chapter 3, Section G).

The co-funding sources and estimated funding amounts for all four buses project costs include:

1. DERA funds ($175K each) $700,000;
2. Community Air Protection incentives ($90K each) $360,000; and
3. Applicant Cost Share ($5,376.61 each) $ 21,506.44

This project will use CAP incentives, and strongly supports the goals of AB 617. The project is located within an area that has been designated as both a disadvantaged and low-income community, makes use of advanced technology, and is consistent with project types supported by impacted communities. CAP incentives are intended to bring immediate emissions benefits to communities most heavily impacted by air pollution, and for the reasons outlined above, this project is a crucial part of realizing those benefits.

This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The project information can be entered through the Non-Calculation form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: November 19, 2019
Contact: Deborah Paselk (916) 323-1534, Hurshbir Shahi (916) 323-9687

Reference # 2019-11
Request: Allow four medium-duty diesel engine school buses to be replaced with four heavy-duty zero-emission engine school buses. This project will be funded using Community Air Protection (CAP) Incentives. (Project Number 20SBP18620SBP186)
Air District: Bay Area Air Quality Management District
Guidelines Section(s): 2017 Carl Moyer Program Guidelines, Chapter 4 Sections C.1.(B)(1), C.1.(B)(2),C.2.(G)(1),C.4.(F), C.5.(F), and C.5.(G). 2019 Community Air Protection Incentives Guidelines, Chapter 2 Sections F, K and L; Appendix A Section C; and Appendix B.
ARB Action: Approved

Determination: The Bay Area Air Quality Management (BAAQMD) is seeking to use Community Air Protection Funds to fund the replacement of four medium-duty diesel school buses with four light heavy-duty zero-emission school buses at Franklin-McKinley School District (FMSD). FMSD is located within and serves areas that have been designated as disadvantaged communities and low-income communities, as described in Assembly Bill (AB) 1550.

On-road vehicle projects with a gross vehicle weight rating (GVWR) less than 14,001 lbs. are required to be reviewed on a case-by-case basis, per Carl Moyer Program 2017 Guidelines, Chapter 4, Sections C.2.(G)(1) and C.4.(F). CAP incentives would be used to fund the replacement of all four of FMSD's (GVWR 14,000 lbs) diesel engine school buses with four zero emission technology school buses (GVWR 14,500 lbs). The baseline school buses are equipped with model year 1999 and 2000 diesel engines certified for an intended medium duty service class. The four zero emission technology replacement school buses will be equipped with 2019 model year electric motors having an executive order intended service class of heavy-duty. Furthermore, the replacement vehicles will have the same axle and body configuration as the baseline vehicles (Chapter 4, Section C.5.(G)). The California Air Resources Board has directed that zero-emission projects be prioritized whenever feasible, as noted in 2019 Community Air Protection Incentives Guidelines, Chapter 2, Section K.

Chapter 4, Sections C.1.(B)(1) and C.1.(B)(2) of the Carl Moyer Program 2017 Guidelines require that a replacement vehicle must be in the same weight class as the existing vehicle, and that a vehicle must be powered by an engine certified to the applicable heavy-duty intended service class as shown on the engine's Executive Order. New school buses require additional equipment for safety, which result in greater GVWR than earlier model school buses of similar function. Chapter 4, Section C.5.(F) states that a vehicle with a MHD engine can replace one with a heavy heavy duty (HHD) engine if they both have the same axle configuration, but the funding amount must be at the medium heavy duty (MHD) funding level.

This project will use CAP incentives, and strongly supports the goals of AB 617. The project is located within an area that have been designated as both a disadvantaged community and low-income community, and makes use of advanced technology and is consistent with project types supported by impacted communities. CAP incentives are intended to bring immediate emissions benefits to communities most heavily impacted by air pollution, and for the reasons outlined above, this project is a crucial part of realizing those benefits.

This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The project information can be entered through the Non-Calculation form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: July 11, 2019
Contact: Deborah Paselk (916) 323-1534

Reference # 2019-10
Request: Allow for replacing and dismantling of an older back-up school bus to meet the Moyer dismantle requirement. Also, allow a mismatch in the replacement vehicle's chassis size and its engine's intended service class.
Air District: Lake County Air Pollution Control District
Guidelines Section(s): 2017 Carl Moyer Program Guidelines, Chapter 4 Section B.5, C.1, and C.8
ARB Action: Approved

Determination: Middletown Unified School District (MUSD) is seeking funding to replace a 2008 model year engine, with a school bus equipped with an engine certified to the 2010 emission standards. Rather than scrapping the 2008 model year engine school bus, MUSD is proposing to scrap the 1996 engine model year school bus in their fleet, currently being used as a back-up school bus. All three school buses are heavy heavy-duty (HHD) weight class with a similar gross vehicle weight rating (GVWR).

The 1996 model year engine school bus cannot be filtered, and is compliant with the Statewide Truck & Bus Regulation under the Low-Use Exemption. Due to the age of this bus, MUSD is requesting to scrap it, and designate the 2008 engine model year bus as the new back-up bus. As specified in Chapter 4, Section C.8. (A) of the 2017 Carl Moyer Program Guidelines, destruction of the existing vehicle chassis and engine may not be substituted with a different vehicle. Scrapping the 1996 model year school bus and reducing the usage of the 2008 model year engine school bus to 1,000 miles per year will produce more emission reductions, than solely replacing the 2008 model year engine school bus. The 2008 model year engine bus must be driven fewer than 1,000 miles per year and reported in Truck Regulation Upload, Compliance and Reporting System (TRUCRS) under the low-use exemption, for tracking purposes. In addition, MUSD must submit photographs of the odometer of the 2008 model year engine school to the air district annually for verification throughout the life of the project.

The 2008 model year engine school bus has a GVWR of 37,000 lbs. with Executive Order intended service class engine of medium heavy-duty (MHD); emission factors and deterioration rates in Table D-1 in Appendix D of the 2017 Guidelines shall be used for the baseline and reduced engine emission factor The replacement vehicle will have a GVWR of 37,600 lbs. The school bus's route requires that the school bus have a heavier chassis to safely travel on mountainous and snowy roadways. As specified in Chapter 4, Section C.1. (B)(2) of 2017 Carl Moyer Program Guidelines MHD engines may be installed in HHD vehicles with GVWR up to 36,300 lbs. (ten percent higher than 33,000 lbs. GVWR) with written warranty verification by engine and chassis manufacture. In addition to the written warranty verification by the engine and chassis manufacturer, the manufacturer must supply supporting documentation showing that the school bus requires a heavier chassis.

As specified in Chapter 4, Section B.5 of the 2017 Carl Moyer Program Guidelines, the grant amounts must be based on a minimum of two twelve month periods of California usage during the previous twenty-four months. The minimum of two twelve month periods of mileage usage for the 2008 model year engine school bus was 11,522 miles, and must be used in the cost-effectiveness calculation for this project.

The air district must determine grant amounts using MHD emission factors and deterioration rates for the baseline vehicles, whereas use HDD emission factors and deterioration rates for the replacement vehicle. The emission factors can be found in Tables D-1 of the 2017 Carl Moyer Program Guidelines, and are included in the following table:

This approval does not constitute a comprehensive review of the project. It is the air district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The air district can enter project information through the Non-Calculation form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: July 15, 2019
Contact: Deborah Paselk (916) 323-1534

Reference # 2019-01
Request: Allow two medium-duty diesel school buses to be replaced with light heavy-duty zero-emission school buses. This project will be funded using Community Air Protection Funds. (Project Number 20SBP72)
Air District: Bay Area Air Quality Management District
Guidelines Section(s): 2017 Guidelines, Chapter 4 Sections C.1.(B)(1), C.1.(B)(2),C.2.(G)(1),C.4.(F), C.5.(F), and C.5.(G) including relevant changes contained in the Community Air Protection Funds Supplement to the Carl Moyer Program 2017 Guidelines
ARB Action: Approved

Determination: The Bay Area Air Quality Management (BAAQMD) is seeking to use Community Air Protection Funds to fund the replacement of two medium-duty diesel school buses with light heavy-duty zero-emission school buses at Milpitas Unified School District (MUSD). MUSD is located within and serves low-income communities.

On-road vehicle projects with a gross vehicle weight rating (GVWR) less than 14,001 lbs are required to be reviewed on a case-by-case basis, per Moyer Program 2017 Guidelines, Chapter 4, Sections C.2.(G)(1) and C.4.(F). The Community Air Protection Funds would be used to fund the replacement of two of MUSD's medium-duty (GVWR 14,000 lbs) school buses, both of which are equipped with 2000 model year medium heavy-duty (MHD) diesel engines, with light heavy-duty (GVWR 14,500 lbs) zero-emission technology school buses equipped with 2019 model year heavy-duty electric motors. The replacement vehicles will have the same axle and body configuration as the old vehicles (Chapter 4, Section C.5.(G)). Zero-emission school bus projects have been met with a positive reception in disadvantaged and heavily-burdened communities.

Chapter 4, Sections C.1.(B)(1) and C.1.(B)(2) of the Moyer Program 2017 Guidelines require that a replacement vehicle must be in the same weight class as the existing vehicle, and that a vehicle must be powered by an engine certified to the applicable heavy-duty intended service class as shown on the engine's Executive Order. Chapter 4, Section C.5.(F) states that a vehicle with a MHD engine can replace one with a HHD engine if they both have the same axle configuration, but the funding amount must be at the MHD funding level.

Grant amounts must be determined using MHD emission factors found in Table D-1 of the 2017 Moyer Program Guidelines, and are included in the following table:

This project will use Community Air Protection Funds, and strongly supports the goals of AB 617. The project is located within a low-income community, makes use of advanced technology, and is consistent with project types supported by impacted communities. Community Air Protection Funds are intended to bring immediate emissions benefits to communities most heavily impacted by air pollution, and for the reasons outlined above, this project is a crucial part of realizing those benefits.

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The project information can be entered through the Non-Calculation form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: January 11, 2019
Contact: Deborah Paselk (916) 323-1534

Reference # 2018-27
Request: Allow a drayage truck with a model year 2006 dual-fuel engine to receive Moyer funds for replacement with an optional low-NOx engine (Project Number: 63)
Air District: South Coast Air Quality Management District
Guidelines Section(s): 2017 Guidelines, Chapter 4, Section A.2.(D), Section C.2.(D)(2), Appendix D Table D-2
ARB Action: Approved

Determination: South Coast Air Quality Management District received an application from Southern Counties Express to replace three drayage trucks with new trucks equipped with engines certified to the 0.02 g/bhp-hr NOx standard. One of the existing engines is a model year 2006 Cummins ISX engine (Engine Family Name 6CEXH0912XAH) retrofitted with Westport Fuel Systems Inc.'s High Pressure Direct Injection Natural Gas/Diesel Bi-Fuel Retrofit System, which received ARB certification (Executive Order B-53). Southern Counties Express only utilizes natural gas to fuel the engines. The engines are exempt from the Drayage Truck Regulation but are required to meet 2010 engine standards once they become subject to the Truck and Bus Regulation on January 1, 2023. The 2017 Guidelines require existing drayage trucks to have 2007 or newer engines to be eligible for funding which aligns with the current requirement that all diesel-powered drayage trucks meet 2007 standards. However, since these natural gas-fueled engines are exempt from the drayage regulation, staff has determined that the model year 2006 engine is eligible for Moyer funding. The applicable surplus and emission factors to be used in cost-effectiveness calculations are shown in the table below:

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: December 3, 2018
Contact: Danielle Robinson (626) 575-6775

Reference # 2018-24
Request: Allow Roseville City Elementary School District to replace a 190 horsepower (hp) engine school bus with a greater gross vehicle weight rating (GVWR) 25,5000 pounds (lbs), with a school bus that has a higher GVWR (37,000 lbs). Also, allow the replacement school bus to have a greater horsepower rating (250 hp) than what the 2017 Guidelines allow. This project will be funded using Community Air Protection Funds
Air District: Placer County Air Pollution Control District
Guidelines Section(s): 2017 Guidelines, Chapter 4 Sections C.1.(B)(1), C.1.(B)(2), C.5.(B), C.5.(E), and C.5.(F); Community Air Protection Funds Supplement to the Carl Moyer Program 2017 Guidelines, Section II. B., Appendix A
ARB Action: Approved

Determination: Placer County Air Pollution Control District (APCD) is seeking to fund the replacement of a Roseville City Elementary School bus that is under the weight class of the replacement school buses (Chapter 4, Sections C.1.(B)(1) and C.1.(B)(2)). Additionally, the Roseville City Elementary School bus exceeds the greater than 25 percent horsepower allowance in the 2017 Moyer Program Guidelines, but under limited situations the Guidelines allow an air district to approve a greater than 25 percent increase (Chapter 4, Section C.5.(E)).

The baseline school bus is a 1995 model year with a 190 hp medium heavy-duty diesel (MHDD) engine (GVWR 25,500 lbs) that has been retrofitted with a diesel particulate filter, and as such is in compliance with Truck & Bus Regulation. The Roseville City Elementary School's replacement bus will be funded with Community Air Protection Funds. In adherence with the Guideline Supplement for Community Air Protection Funds the Placer County APCD conducted public outreach meeting(s) and received support from the community for funding of a 2018 model year MHDD engine (GVWR 37,000 lbs) school bus with a 250 hp diesel engine. The replacement school bus will be equipped with a diesel engine certified to the 2010 0.20g/bhp-hr NOx emission standards, rather than advanced technology, due to concerns that replacements with advanced technology may be unable to safely complete school routes in mountainous terrain in the Placer County area where torque is essential. In addition, the schools currently operate diesel fleets, and the infrastructure changes needed for a transformation to zero-emission school buses would be significant at this time.

The Roseville City Elementary School replacement bus exceeds the greater than 25 percent horsepower requirement of the existing school bus (2017 Moyer Program Guidelines Chapter 4 Section C.5.(E)) by 13 percent. The manufacturer has submitted a letter that explains that the additional safety features that are now standard on newer buses, along with additional equipment requirements specific to this bus, are the reason for this increase beyond what the Guidelines allow. These features add to the weight of the bus and the additional weight requires more horsepower. In addition to the normally-required written warranty verification for an engine and chassis size mismatch, the manufacturer must supply the technical specifications requiring a larger chassis.

Grant amounts must be determined using medium heavy-duty emission factors and deterioration rates for the baseline vehicles, and heavy heavy-duty emission factors and deterioration rates for the replacement vehicles. The emission factors to be used are found in Tables D-1 and D-2 of the 2017 Moyer Program Guidelines, and are included in the following table:

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The project information can be entered through the Non-Calculation form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database

Determination Date: October 31, 2018
Contact: Deborah Paselk (916) 323-1534

Reference # 2018-21
Request: Provide guidance on calculation methodology including appropriate emission factors for certified optional low NOx replacement engines fueled by liquid petroleum gas
Air District: South Coast Air Quality Management District
Guidelines Section(s): 2017 Guidelines, Chapter 4, Section B.6.
ARB Action: Approved

Determination: South Coast Air Quality Management District received an application from Nestle Waters North America to replace 89 of their medium heavy-duty trucks with cleaner medium heavy-duty trucks. The baseline trucks have gross vehicle weight ratings (GVWR) of 33,000 pounds (lbs) and are equipped with medium heavy-duty diesel-fueled engines ranging from engine model year 2007 to 2009. The replacement trucks have 33,000 lbs GVWR and are equipped with engines certified to the 0.02 grams per brake horsepower-hour optional low NOx standard. The replacement engines (Executive Order A-344-0086) are fueled by liquefied petroleum gas (LPG). Chapter 4, Section B.6. of the 2017 Moyer Program Guidelines specifies that emission reduction calculations must be based on factors provided in Appendix D which only provides factors for diesel and alternative-fueled engines.

Staff has determined the following points should be included when performing calculations for this project:

1. Some of the baseline engines are certified to family emission limits that exceed the 2007 emissions standards but only emission factors based on the 2007 standards in Table D-1 will be used.


2. Considering that LPG engines operate similarly to gasoline spark-ignited engines and are certified to Otto-cycle standards and test procedures, emission factors for the replacement engines must be based on gasoline engines from 2014 EMFAC inventory data. The medium heavy-duty vehicle category must be used.


3. Deterioration rates are not currently available for LPG engines. Therefore, calculations will not include deterioration for the baseline or replacement vehicles.


4. The following emission factors (EF) should be used for the two-step calculation:

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control rules. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: October 30, 2018
Contact: Danielle Robinson (626) 575-6775

Reference # 2018-23
Request: Allow Tahoe Truckee Unified School District's to replace their medium heavy-duty diesel (MHDD) engine special needs school bus, that has a gross vehicle weight rating (GVWR) of 14,000 pounds (lbs), with one that has a higher GVWR (33,000 lbs) than the Moyer Program 2017 Guidelines allow.
Air District: Placer County Air Pollution Control District
Guidelines Section(s): 2017 Guidelines, Chapter 4 Sections C.1.(B)(1), C.1.(B)(2), C.5.(B), and C.5.(F)
ARB Action: Approved

Determination: Placer County Air Pollution Control District (APCD) is seeking to fund the replacement of Tahoe Truckee Unified School District's special needs school bus that is below the weight class of the replacement school bus. (Chapter 4, Sections C.1.(B)(1) and C.1.(B)(2)).

The Tahoe Truckee Unified School District baseline school bus is a special needs 2005 model year MHDD engine (GVWR 14,000 lbs). The baseline bus will be replaced with a larger 2018 model year MHDD engine (GVWR 33,000 lbs) special needs school bus. The larger weight class is due to the structural integrity needed for the wheelchair lift's taller windows, and the higher ground clearance needed for better performance and safety in the adverse winter conditions.

Furthermore, the school bus manufacturer recommends a higher horsepower engine for full-sized school buses in the Placer County area, due to the steep grades, mountainous grades, snow, ice, and parasitic load from the use of heaters and other onboard equipment. This increase in horsepower enhances vehicle performance, safety, and maneuverability under such driving conditions. Technical specifications from the engine manufacturer require that these higher horsepower engines be installed in larger chassis, resulting in the higher weight class school bus. In addition to the normally-required written warranty verification for an engine and chassis size mismatch, the manufacturer must supply the technical specifications requiring a larger chassis.

Grant amounts must be determined using medium heavy-duty emission factors and deterioration rates for the baseline vehicles, and heavy heavy-duty emission factors and deterioration rates for the replacement vehicles. The emission factors to be used are found in Tables D-1 and D-2 of the 2017 Moyer Program Guidelines, and are included in the following table:

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The project information can be entered through the Non-Calculation form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: October 18, 2018
Contact: Deborah Paselk (916) 323-1534

Reference # 2018-22
Request: Provide guidance on calculation methodology for cement mixer trucks utilizing power take-off (PTO).
Air District: South Coast Air Quality Management District
Guidelines Section(s): Chapter 4, Section B.6., Appendix C and D
ARB Action: Approved

Determination: South Coast Air Quality Management District seeks to fund the replacement of 31 cement mixer trucks with optional low NOx engines certified to the 0.02 grams per brake horsepower-hour NOx standard (Executive Order A-021-0680). The baseline engine model years range from 2002 to 2008. The baseline vehicles have gross vehicle weight ratings (GVWR) ranging from 62,000 to 77,200 lbs. The new replacement trucks have GVWR of 66,000 lbs. The trucks, operated by National Ready Mixed Concrete Company, use a significant amount of PTO, which draws power from the engine during traveling and idling. Chapter 4, Section B.6. of the 2017 Moyer Program Guidelines specifies that emission reduction calculations must be based on factors provided in Appendix D. However, those emission factors do not include PTO usage. Staff has determined that supplemental calculations based on fuel usage are needed. Emissions from PTO use can be accounted for based on EMFAC inventory and fuel usage data. The applicant provided annual mileage and hourly PTO usage documentation but was unable to provide fleet-specific fuel usage information. As a substitute, the average fuel usage for cement mixer trucks based on the 2014 National Ready Mixed Concrete Association Fleet Benchmarking and Costs Survey will be used. The emission factors from Appendix D, Table D-2 will be applied to the annual mileage of the trucks.

The following information will be used when calculating emission reductions:

1. The PTO fuel usage rate: 0.72 gallons/hour (3.19 gallons/hour x estimated 22.5% PTO fraction of total fuel usage).

2. The truck miles per gallon based on 2014 EMFAC data for each engine model year is shown in the table below:

Heavy Heavy-Duty Truck Miles per Gallon (MPG)

4. PTO emissions will be added to emissions calculated using mileage according to Appendix C, Formula C-5 in the Guidelines.

Staff is aware of the hour to mile methodology used for cement mixer trucks by the Goods Movement Emission Reduction Program which better serves the selection process and mileage eligibility requirements of that program. For the purposes of this project under the Moyer Guidelines, the calculation methodology based on fuel usage would be more appropriate.

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control rules. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: October 9, 2018
Contact: Danielle Robinson (626) 575-6775

Reference # 2018-15
Request: Provide guidance on calculation methodology including appropriate emission factors for certified optional low NOx replacement engines fueled by liquid petroleum gas.
Air District: Bay Area Air Quality Management District
Guidelines Section(s): 2017 Guidelines, Chapter 4, Section B.6.
ARB Action: Approved

Determination: Bay Area Air Quality Management District received an application from Nestle Waters North America to replace 26 of their heavy heavy-duty trucks with cleaner medium heavy-duty trucks. The baseline trucks have gross vehicle weight ratings (GVWR) of 35,000 pounds (lbs) but are equipped with medium heavy-duty diesel fueled engines ranging from engine model year 2007 to 2009. The replacement trucks have 33,000 lbs GVWR and are equipped with engines certified to the 0.02 grams per brake horsepower-hour optional low NOx standard. The replacement engines (Executive Order A-344-0086) are fueled by liquefied petroleum gas (LPG). Chapter 4, Section B.6. of the 2017 Moyer Program Guidelines specifies that emission reduction calculations must be based on factors provided in Appendix D which only provides factors for diesel and alternative-fueled engines. In addition, the factors are based on EMFAC inventory data of vehicles equipped with engines of the same weight class.

Staff has determined the following points should be included when performing calculations for this project:

1) Since the baseline trucks are powered by medium heavy-duty diesel engines, the baseline emission factors must be based on Table D-1 in Appendix D.

2) The baseline vehicles are certified to family emission limits that exceed the 2007 emissions standards but only emission factors based on the 2007 standards in Table D-1 will be used.

3) Considering that LPG engines operate similarly to gasoline spark-ignited engines and are certified to Otto-cycle standards and test procedures, emission factors for the replacement engines must be based on gasoline engines from 2014 EMFAC inventory data. Since the replacement vehicle is medium heavy-duty, the medium heavy-duty vehicle category must be used.

4) Deterioration rates are not currently available for LPG engines. Therefore, calculations will not include deterioration.

5) The following emission factors (EF) should be used for the two-step calculation:

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control rules. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: September 6, 2018
Contact: Danielle Robinson (626) 575-6775

Reference # 2018-17
Request: Allow Almond Acres Charter Academy (AACA) to use mileage records from the San Miguel Joint Union School District (SMJUSD) backup school bus previously driven by AACA when their bus was out of service.
Air District: San Luis Obispo County Air Pollution Control District
Guidelines Section(s): 2017 Guidelines, Chapter 4 Section B.5
ARB Action: Approved

Determination: San Luis Obispo County Air Pollution Control District (SLOAPCD) is seeking to fund the replacement of AACA school bus. AACA has a school bus fleet of one school bus. In 2017, their school bus was taken out of service due to a faulty regeneration heater in the diesel particulate filter. From July 2017 to December 2017 AACA used a back-up school bus belonging to the neighboring school district of SMJUSD. AACA school bus and the SMJUSD back-up school bus are of similar age and weight class:

The Carl Moyer Program Guidelines require 24 months of mileage documentation (2017 Guidelines, Chapter 4 Section B.5). SLOAPCD is requesting that AACA use miles accumulated on SMJUSD's back-up school bus from July 2017 to December 2017, while AACA's only school bus was out of service. The miles accumulated on SMJUSD back-up school bus would be included as part of the 24 months of mileage documentation requirement for the AACA school bus.

California Air Resources Board (CARB) staff has reviewed the documentation provided by the air district showing that the two school buses are comparable, and that the mileage records would be similar had the AACA school bus been in service. Following the review, CARB staff determined that SLOAPCD may include the mileage records from SMJUSD's backup school bus as part of the 24 months of mileage documentation requirement and for calculating the project's cost-effectiveness.

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The district must also receive an Executive Order for the replacement engine showing it is certified to the applicable standard. The project information can be entered through the Non-Calculation form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: August 10, 2018
Contact: Deborah Paselk (916) 323-1534

Reference # 2018-16
Request: Allow six school buses equipped with light heavy-duty diesel engines to be replaced with school buses equipped with medium heavy-duty CNG engines meeting the 0.02 g/bhp-hr optional low-NOx standard
Air District: Bay Area Air Quality Management District
Guidelines Section(s): 2017 Guidelines, Chapter 4 Sections C.1.(B)(1), C.1.(B)(2), C.5.(B), C.5.(E), and C.5.(F), including relevant changes contained in the Community Air Protection Funds Supplement to the Carl Moyer Program 2017 Guidelines
ARB Action: Approved

Determination: Vallejo City Unified School District (VCUSD) is seeking funding to replace six school buses equipped with 1996 and 1997 model year diesel engines with school buses equipped with 2018 model year CNG engines certified to the 0.02 g/bhp-hr optional low-NOx emission standards. The existing school buses have been retrofitted with diesel particulate filters as per the requirements of the Truck & Bus Regulation, and as such are in compliance. Per the Guideline supplement for Community Air Protection funds, the air district is choosing to use the fleet's average annual mileage of 8,029 miles/year to determine grant amounts. VCUSD is within a disadvantaged community, and serves adjacent low-income communities. Furthermore, school bus projects featuring advanced technology replacements in disadvantaged communities have received the widespread support of communities and community groups throughout the Bay Area Air Quality Management District, and as such this project will strongly support the goals of Assembly Bill (AB) 617.

Chapter 4, Sections C.1.(B)(1) and C.1.(B)(2) of the Moyer Program 2017 Guidelines require that a replacement vehicle must be in the same weight class as the existing vehicle, and that a vehicle must be powered by an engine certified to the applicable heavy-duty intended service class as shown on the engine's Executive Order, respectively. Chapter 4, Section C.5.(E) requires that the horsepower of a replacement vehicle's engine must be no more than 25 percent greater than the horsepower of the existing vehicle's engine, but that an air district may approve a greater than 25 percent increase in limited situations.

Engine manufacturers typically recommend a higher horsepower engine for full-sized school buses in the Bay Area due to hilly terrain and frequent freeway travel, this increase in horsepower enhances vehicle performance, safety, and maneuverability under such driving conditions. Additionally, there are no other advanced technology alternatives within the accepted horsepower range. Technical specifications from the engine manufacturer require that these higher horsepower engines be installed in larger chassis. In addition to the normally-required written warranty verification for an engine and chassis size mismatch, the manufacturer must supply the technical specifications requiring a larger chassis.

Grant amounts must be determined using medium heavy-duty emission factors and deterioration rates for the baseline vehicles, and heavy heavy-duty emission factors and deterioration rates for the replacement vehicles. The emission factors to be used are found in Tables D-1 and D-2 of the 2017 Moyer Program Guidelines, and are included in the following table:

Alternative solutions such as electric school bus replacements were considered by both the air district and the school district for this project, but for a variety of reasons it was determined that CNG optional low-NOx replacements would be most feasible. Significant infrastructure changes required for a transformation to zero-emission school buses would be prohibitively disruptive to normal school operations, and would limit the total number of diesel school buses that could be replaced. Gasoline replacements were considered as well, but few gasoline options exist for the size range of school buses necessary to maintain normal fleet operations in the school district.

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The project information can be entered through the Non-Calculation form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: August 30, 2018
Contact: Kyle Goff (916) 324-1988

Reference # 2018-11
Request: Allow for dismantle of an older backup school bus, so that both the Moyer dismantle requirement and Summerville Elementary School's minimum fleet requirement are met. In addition, allowance of a higher GVWR for the replacement school bus, for vocational purposes.
Air District: Tuolumne County Air Pollution Control District
Guidelines Section(s): 2017 Guidelines, Chapter 4 Section B.5, C.1, and C.8
ARB Action: Approved

Determination: Summerville Elementary School District (SESD) is seeking funding to replace one school bus equipped with a 2003 model year engine with a school bus equipped with an engine certified to the 2010 emission standards. School policy requires that SESD maintain at least three buses in their fleet at all times; therefore, they cannot scrap two of their three buses. The baseline school bus, equipped with a 2003 model year engine, has driven an average of 7,739 miles per year for the past four years, and been retrofitted with a diesel particulate matter filter (DPF) per the requirements of the Truck and Bus Regulation. The 2017 Guidelines require grant amounts be based on a minimum of two twelve month periods of California usage during the previous twenty-four months as specified in Chapter 4, Section B.5. However, historical usage over the last four years, of the 2003 bus is more representative of how the new engine will operate.

Under the 2017 Guidelines, destruction of the existing vehicle chassis and engine may not be substituted with a different vehicle as specified in Chapter 4, Section C.8.(A). The oldest bus in their fleet is equipped with a 1989 model year engine, and currently serves as a backup. Due to the age of the bus, SESD is requesting the 1989 engine model year bus be scrapped, and the 2003 engine model year bus be designated as the new backup bus. Under this scenario, more emission reductions will be achieved as compared to just scrapping the low use 1989 engine model year bus. The 2003 engine model year backup bus will be limited to an average of 1,000 annual miles and reported in TRUCRS under the low-use exemption, for tracking purposes. In addition, photographs of the 2003 engine model year bus odometer must be submitted to the air district annually for verification. The project life will be 6 years.

The baseline engine's Executive Order intended service class is medium-heavy-duty; emission factors and deterioration rates in Table D-1 in Appendix D of the 2017 Guidelines shall be used for the baseline and reduced engine emission factors. As specified in Chapter 4, Section C.1.(B)(2) MHD engines may be installed in HHD vehicles with GVWR up to 36,300 lbs. (ten percent higher than 33,000 lbs. GVWR) with written verification by engine and chassis manufacture. The replacement school bus will be driven primarily in mountainous areas, not flat lands, resulting in additional component requirements that increase GVWR. Some of the components that are required are a heavier engine, drop down tire chains, and larger tires. The replacement vehicle's GVWR will be up to 37,600 lbs., which is thirteen percent greater than that of the MHD vehicle. In addition to the written warranty verification by the engine and chassis manufacturer, the manufacturer must supply supporting documentation showing that the school bus requires the additional components. The annual mileage as documented in the previous 48 months shall be used to calculate emission reductions. The applicable emission factors and deterioration rates to be used in the cost-effectiveness calculations are shown in the table below:

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The project information can be entered through the Non-Calculation form in the Clean Air Reporting Log (CARL) database. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: June 15, 2018
Contact: Sondra Sala (916) 323-2738

Reference # 2018-02-2
Request: Allow diesel and CNG powered school buses to be replaced with gasoline-powered school buses, using appropriate emission factors, including one medium-duty school bus
Air District: Bay Area Air Quality Management District
Guidelines Section(s): 2017 Guidelines, Chapter 4 Section B.6 and Section C.2.(G)(1), Appendix D Table D-1
ARB Action: Approved

Determination: This revised determination supersedes the already-revised determination with reference # 2018-02-1 posted on June 6, 2018 to reflect that, in addition to some of the baseline equipment alluded to in the original case-by-case determination having a light heavy-duty intended service class instead of medium heavy-duty, one of the school buses is medium-duty and will be replaced with a similarly-sized medium-duty school bus.

Bay Area Air Quality Management District is seeking to fund the replacement of several school buses with replacements fueled by gasoline: one diesel school bus from Old Adobe Union High School District, nine diesel school buses from Berkeley Unified School District, one diesel school bus from Redwood City School District, one diesel school bus from Moreland School District, and two CNG school buses from San Mateo Union High School District. One baseline school bus and its replacement have medium-duty chassis and engines, and all the other baseline and replacement school buses have light heavy-duty or medium heavy-duty engines. All replacement school buses have engine model years of 2017 or 2018. When calculating emissions, the baseline school buses, including the medium-duty school bus, shall use emission factors from The Carl Moyer Program Guidelines, Appendix D Table D-1, based on their engine model years. The Moyer Program Guidelines do not contain emission factors for gasoline-powered on-road vehicles, and CARB staff has determined the appropriate emission factors to be used for the replacement school buses. Gasoline-fueled engines deteriorate non-linearly due to periodic smog checks and frequent repairs, and Moyer calculation methodology does not yet account for non-linear deterioration. In recognition of the minimal impact deterioration has on emission reductions when considering lower-usage vehicles such as school buses, and to enable these projects to proceed in a timely manner, cost-effectiveness will be more conservatively calculated for these projects by not accounting for deterioration. The applicable emission factors were retrieved from EMFAC 2014 and are included in the table below:

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The district must also receive Executive Orders for the replacement engines showing they are certified to the applicable standard. Please include this case-by-case reference number in the comment fields for these projects in the CARL database.

Determination Date: August 30, 2018
Contact: Kyle Goff (916) 324-1988

Reference # 2018-02-1
Request: Allow diesel and CNG powered school buses to be replaced with gasoline-powered school buses, using appropriate emission factors
Air District: Bay Area Air Quality Management District
Guidelines Section(s): 2017 Guidelines, Chapter 4 Section B.6, Appendix D Table D-1
ARB Action: Approved

Determination: This revised determination supersedes the original determination with reference # 2018-02 posted on January 26, 2018 to reflect that some of the baseline equipment alluded to in the original case-by-case determination have a light heavy-duty intended service class instead of medium heavy-duty.

Bay Area Air Quality Management District is seeking to fund the replacement of several school buses with replacements fueled by gasoline: one diesel school bus from Old Adobe Union High School District, nine diesel school buses from Berkeley Unified School District, one diesel school bus from Redwood City School District, one diesel school bus from Moreland School District, and two CNG school buses from San Mateo Union High School District. The baseline and replacement school buses all have light heavy-duty or medium heavy-duty engines, and the replacement school buses have engine model years of 2017 or 2018. When calculating emissions, the baseline school buses shall use emission factors from The Carl Moyer Program Guidelines, Appendix D Table D-1, based on their engine model years. The Moyer Program Guidelines do not contain emission factors for gasoline-powered on-road vehicles, and CARB staff has determined the appropriate emission factors to be used for the replacement school buses. Gasoline-fueled engines deteriorate non-linearly due to periodic smog checks and frequent repairs, and Moyer calculation methodology does not yet account for non-linear deterioration. In recognition of the minimal impact deterioration has on emission reductions when considering lower-usage vehicles such as school buses, and to enable these projects to proceed in a timely manner, cost-effectiveness will be more conservatively calculated for these projects by not accounting for deterioration. The applicable emission factors were retrieved from EMFAC 2014 and are included in the table below:

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The district must also receive Executive Orders for the replacement engines showing they are certified to the applicable standard. Please include this case-by-case reference number in the comment fields for these projects in the CARL database.

Determination Date: June 6, 2018
Contact: Kyle Goff (916) 324-1988

Reference # 2018-02
Request: Allow diesel and CNG powered school buses to be replaced with gasoline-powered school buses, using appropriate emission factors
Air District: Bay Area Air Quality Management District
Guidelines Section(s): 2017 Guidelines, Chapter 4 Section B.6, Appendix D Table D-1
ARB Action: Approved

Determination: Bay Area Air Quality Management District is seeking to fund the replacement of several school buses with replacements fueled by gasoline: one diesel school bus from Old Adobe Union High School District, nine diesel school buses from Berkeley Unified School District, one diesel school bus from Moreland School District, and two CNG school buses from San Mateo Union High School District. The baseline and replacement school buses all have medium heavy-duty engines, and the replacement school buses have engine model years of 2017 and 2018. When calculating emissions, the baseline school buses shall use emission factors from The Carl Moyer Program Guidelines, Appendix D Table D-1, based on their engine model years. The Moyer Program Guidelines do not contain emission factors for gasoline-powered on-road vehicles, and CARB staff has determined the appropriate emission factors to be used for the replacement school buses. Gasoline-fueled engines deteriorate non-linearly due to periodic smog checks and frequent repairs, and Moyer calculation methodology does not yet account for non-linear deterioration. In recognition of the minimal impact deterioration has on emission reductions when considering lower-usage vehicles such as school buses, and to enable these projects to proceed in a timely manner, cost-effectiveness will be more conservatively calculated for these projects by not accounting for deterioration. The applicable emission factors were retrieved from EMFAC 2014 and are included in the table below:

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The district must also receive Executive Orders for the replacement engines showing they are certified to the applicable standard. Please include this case-by-case reference number in the comment fields for these projects in the CARL database.

Determination Date: January 26, 2018
Contact: Kyle Goff (916) 324-1988

Reference # 2017-08
Request: Allow the funding of 68 optional low NOx refuse trucks ordered and/or delivered prior to district approval
Air District: South Coast Air Quality Management District
Guidelines Section(s): Health and Safety Code Sections 44280(b) and 44297(e); 2017 Guidelines, Chapter 2, Section Q; Appendix B
ARB Action: Not Approved

Determination: South Coast Air Quality Management District received an application in July 2017 from Arakelian Enterprises, Inc. to fund 68 refuse trucks equipped with engines certified to the 0.02 g/bhp-hr NOx standard. After reviewing the application and discussions with the applicant, the district learned the vehicles had already been ordered and 45 had already been delivered with the remainder to be delivered in October. The vehicles were ordered in January 2017 to meet contract requirements with the City of Los Angeles. The contract requires the refuse trucks to be no more than eight years old and to be powered by alternative fuel engines. Arakelian Enterprises chose to purchase optional low NOx trucks to meet the requirements. The Health and Safety Code along with the 2017 Guidelines require funding to offset incremental cost, which is defined as costs exceeding those that would have been incurred during the normal course of business. Given that these purchases were made based on an awarded contract that required newer vehicles and the applicant chose to purchase optional low NOx vehicles to meet those requirements prior to applying for funding or receiving district approval, staff considers these purchases to be normal course of business. Therefore, there is no incremental cost associated with the purchases that would be eligible for Moyer funding.

Determination Date: October 12, 2017
Contact: Danielle Robinson (626) 575-6775

Reference # 2017-07
Request: Allow 14 drayage trucks with model year 2006 dual-fuel engines to receive Moyer funds for replacement with optional low-NOx engines
Air District: South Coast Air Quality Management District
Guidelines Section(s): 2017 Guidelines, Chapter 4, Section A.2.(D), Section C.2.(D)(2), Appendix D Table D-2
ARB Action: Approved

Determination: South Coast Air Quality Management District received an application from Green Fleet Systems to replace 14 drayage trucks equipped with model year 2006 engines with engines meeting the 0.02 g/bhp-hr NOx standard (not yet certified or commercially available). The existing engines were retrofitted with Westport Fuel Systems Inc.'s High Pressure Direct Injection Natural Gas/Diesel Bi-Fuel Retrofit System which received ARB certification (Executive Order B-53). Green Fleet Systems only utilizes natural gas to fuel the engines. The engines are exempt from the Drayage Truck Regulation but are required to meet 2010 engine standards once they become subject to the Truck and Bus Regulation on January 1, 2023. The 2017 Guidelines require existing drayage trucks to have 2007 or newer engines to be eligible for funding which aligns with the current requirement that all diesel-powered drayage trucks meet 2007 standards. However, since these natural gas-fueled engines are exempt from the drayage regulation, staff has determined that the model year 2006 engines are eligible for Moyer funding. The applicable surplus and emission factors to be used in cost-effectiveness calculations are shown in the table below:
 

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. The district must also receive an Executive Order for the replacement engine showing it is certified to the applicable standard. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: October 9, 2017
Contact: Danielle Robinson (626) 575-6775

Reference # 2017-06
Request: Accept fuel usage records instead of mileage records for a refuse replacement project and provide conversion factors (Project Number: 56)
Air District: South Coast Air Quality Management District
Guidelines Section(s): 2017 Carl Moyer Program Guidelines, Chapter 4, Section B.5.
ARB Action: Approved

Determination: South Coast Air Quality Management District is seeking to fund the replacement of 61 refuse trucks owned by CR &R, Inc with trucks equipped with engines certified to the 0.02 g/bhp-hr NOx standard. The Carl Moyer Program Guidelines (Guidelines) require 24 months of mileage documentation, which are used to determine cost-effective grant amounts. If mileage records are not available, districts may submit a case-by-case request if the applicant supplies fuel records specific to the baseline vehicle(s) for the previous 24 months. If the case-by-case request is approved, ARB staff will supply a vocation-specific gallon-to-miles conversion factor so that EMFAC mileage-based emission factors may be used to calculate a cost-effective grant amount. This conversion factor may be estimated from ARB's emissions inventory model, EMFAC or based on vehicle-specific information provided by the applicant. The applicant has supplied the district with vehicle-specific fuel records acquired from their fuel record-keeping system.

The following emission factor must be used for cost-effectiveness calculations (based on EMFAC2014 inventory model for heavy heavy-duty solid waste collection trucks):

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: September 1, 2017
Contact: Danielle Robinson (626) 575-6775

Reference # 2017-05
Request: Allow air districts that received Year 19 Carl Moyer State Reserve grant awards to fund school bus replacement projects without establishing a full fleet modernization program under Carl Moyer
Air District: Multiple. Reference list below.
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 5, Sections C.6.(A) and C.6.(C)(2).
ARB Action: Approved

Determination: The 2011 Carl Moyer Program Guidelines state that the air districts funding school bus replacement projects must incorporate fleet modernization in the air district's Carl Moyer Program Policies and Procedures as well as enter into memorandums of understanding (MOU) or agreements with dealer(s) and dismantler(s). Some of the air districts that received Year 19 Carl Moyer State Reserve funding to replace school buses currently do not implement fleet modernization programs and consequently, do not have dealer and/or dismantler agreements.

Staff is allowing the air districts who received State Reserve Grants listed in the table below to proceed with these school bus replacement projects without establishing a fleet modernization program with dealer and dismantler agreements. Year 19 Carl Moyer State Reserve funding was specifically designated for replacement projects that must be completed by December 31, 2017, therefore certain exemptions for the fleet modernization program will be granted in order to ensure the projects will be completed in a timely manner.

Determination Date: July 31, 2017
Contact: Dinh Quach (626) 350-6485

Reference # 2016-10
Request: Provide guidance for appropriate split calculations for replacement of school bus under 2018 engine upgrade/filter compliance requirement (Project#: Bus 35)
Air District: Tuolumne County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 4, Section E.4., Chapter 5, Section C.4.(E), Chapter 5, Section C.5.(E), Appendix D, Table D-3, Appendix C, Section B.7
ARB Action: Approved

Determination: Sonora Unified High School District is seeking funding to replace one school bus equipped with a 1993 model year engine with a school bus equipped with an engine meeting 2010 emission standards. The existing bus is unable to be retrofitted with a particulate matter (PM) filter and has received an extension to meet the PM requirements of the Truck and Bus Regulation. Split funding calculations will be required to determine the funding amount for the surplus emission reductions (oxides of nitrogen (NOx) and reactive organic gases (ROG)). PM emission reductions are not eligible for funding. Split calculation methodology as specified in Appendix C, Section B.7 will be used, but only if the replacement school bus is delivered on or before December 31, 2016. For a 7-year project life, one year will include reductions from the baseline engine model year to 2010+ emission factors since the compliance deadline is considered to be January 1, 2018, at which time the engine would need to be upgraded and filtered. The remaining six years will only include reductions based on the 2007 to 2010+ emission factors as shown in the table below. If the bus is delivered after December 31, 2016 then the emission reductions for all seven years of the project must be calculated using the 2007 to 2010+ emission factors as shown in the table below.

This case-by-case determination applies to school buses with a certified gross vehicle weight rating (GVWR) greater than 33,000 lbs. The baseline engine's Executive Order has no listed intended service class, and its engine size is consistent with engines typically found in vehicles with a certified GVWR greater than 14,000 lbs and less than or equal to 33,000 lbs; for this reason the medium-heavy-duty emission factors in Table D-3 in Appendix D of the Guidelines shall be used for the baseline and reduced engine emission factors. The Executive Order for the replacement school bus's engine must have a listed intended service class consistent with the baseline engine, and the GVWR of the replacement vehicle shall not exceed 36,300 lbs as specified in Chapter 5, Section C.4.(E). The annual mileage as documented in the previous 24 months shall be used as specified in Chapter 5, Section C.5 to calculate emission reductions. The project information can be entered through the Non-Calculation form in the Clean Air Reporting Log (CARL) database.

Emission Factors for Split Emission Reduction Calculations

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: November 17, 2016
Contact: Sondra Sala (916) 323-2738

Reference # 2016-08
Request: Accept ARB approval letter to meet the ARB certification requirement and provide guidance on the proper baseline emission factors to be included in the cost-effectiveness calculations (Project Number: 126-A)
Air District: South Coast Air Quality Management District
Guidelines Section(s): 2011 Carl Moyer Program Guidelines, Chapter 2, Section BB; Tables D-5 and D-6
ARB Action: Approved

Determination: South Coast Air Quality Management District is seeking to fund 13 Proterra extended range battery-electric 40-foot transit buses as new purchase projects for Foothill Transit. The Carl Moyer Program Guidelines (Guidelines) recognize New Purchase projects as emission reduction projects if the new engine emissions are at least 30 percent cleaner than the current standard. Those reductions relative to the standard are incorporated in the cost-effectiveness calculations which are bounded by an $18,260 per ton cost-effectiveness limit and 25 percent project cost funding cap. For this project, each bus would be eligible for approximately $20,000 under the Carl Moyer Program with a projected annual usage of 50,000 miles per year. The project life would be 12 years. Chapter 2, Section BB of the Guidelines requires that each funded emission control technology be certified or verified by ARB. The certification process and test procedures for heavy-duty zero emission vehicles are under development and no Executive Orders are currently being issued. Under an interim approval process, ARB issues approval letters allowing these vehicles to be sold in California if the manufacturer can demonstrate that the vehicles do not emit exhaust or fuel-based evaporative emissions. This zero emission heavy heavy-duty bus has received an ARB approval letter. It has also met all of the requirements to be added to the Hybrid Voucher Incentive Program (HVIP) approval list which include, but are not limited to, submission of ARB's approval letter, warranty information, and battery disposal information. The approval letter for this bus will also be accepted to meet the requirements in Chapter 2, Section BB of the Guidelines. The Guidelines are currently undergoing revisions and may include new requirements for zero-emission technologies including battery-electric vehicles. In the interim, warranty information and battery disposal information related to this bus must be provided to the Carl Moyer Program liaison. In addition, the district must include the engine family name and model in CARL.

In addition, since the Transit Fleet Regulation allows for compliance through a diesel-fueled path or alternative fuel path, it is not clear if the diesel or natural gas baseline emission factors for the 0.2 g/bhp-hr NOx standard should be used. Since Foothill Transit is following the alternative fuel compliance path, the natural gas emission factors from Table D-6 should be used. It should be noted that updated inventory information pertaining to alternative fuel engines has been received that should be applied to the emission factors in Table D-6. Therefore the following updated emission factors should be used which may affect the pre-calculated grant amount:

* ROG = NMHC x 0.62005

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: August 18, 2016
Contact: Danielle Robinson (626) 575-6775

Reference # 2016-06

Request: Provide guidance for appropriate split calculations for replacement of school bus under 2018 engine upgrade/filter compliance requirement (Project#: Bus 5)
Air District: Tuolumne County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 4, Section E.4., Chapter 5, Section C.4.(E), Chapter 5, Section C.5.(E), Appendix D, Table D-3, Appendix C, Section B.7
ARB Action: Approved

Determination: Summerville Union High School District is seeking funding to replace one school bus equipped with a 1989 model year engine with a school bus equipped with an engine meeting 2010 emission standards. The existing bus is unable to be retrofitted with a particulate matter (PM) filter and has received an extension to meet the PM requirements of the Truck and Bus Regulation. Split funding calculations will be required to determine the funding amount for the surplus emission reductions (oxides of nitrogen (NOx) and reactive organic gases (ROG)). PM emission reductions are not eligible for funding. Split calculation methodology as specified in Appendix C, Section B.7 will be used. For an 8-year project life, one year will include reductions from the baseline engine model year to 2010+ emission factors since the compliance deadline is considered to be January 1, 2018, at which time the engine would need to be upgraded and filtered. The remaining seven years will only include reductions based on the 2007 to 2010+ emission factors as shown in the table below. The one-year portion of the surplus period is valid only if the bus is delivered on or before December 31, 2016.

This case-by-case determination applies to school buses with a certified gross vehicle weight rating (GVWR) greater than 33,000 lbs. The baseline engine's Executive Order has no listed intended service class, and its engine size is consistent with engines typically found in vehicles with a certified GVWR greater than 14,000 lbs and less than or equal to 33,000 lbs; for this reason the medium-heavy-duty emission factors in Table D-3 in Appendix D of the Guidelines shall be used for the baseline and reduced engine emission factors. The Executive Order for the replacement school bus's engine must have a listed intended service class consistent with the baseline engine, and the GVWR of the replacement vehicle shall not exceed 36,300 lbs as specified in Chapter 5, Section C.4.(E). The annual mileage as documented in the previous 24 months shall be used as specified in Chapter 5, Section C.5 to calculate emission reductions. The project information can be entered through the Non-Calculation form in the Clean Air Reporting Log (CARL) database.

Emission Factors for Split Emission Reduction Calculations

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: July 19, 2016
Contact: Sondra Sala (916) 323-2738

Reference # 2016-01
Request: Provide guidance for appropriate split calculations for replacement of school bus under 2018 engine upgrade/filter compliance requirement (Project#: Bus 34)
Air District: Tuolumne County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 4, Section E.4., Chapter 5, Section C.5.(E), Appendix D, Table D-1, Appendix C, Section B.7
ARB Action: Approved

Determination: Sonora Union High School District is seeking funding to replace one school bus equipped with a 1990 model year engine with a school bus equipped with an engine meeting 2010 emission standards. The existing bus is unable to be retrofitted with a particulate matter (PM) filter and has received an extension to meet the PM requirements of the Truck and Bus Regulation. Split funding calculations will be required to determine the funding amount for the surplus emission reductions (oxides of nitrogen (NOx) and reactive organic gases (ROG)). PM emission reductions are not eligible for funding. Split calculation methodology as specified in Appendix C, Section B.7 will be used. For an 11-year project life, one year will include reductions from the baseline engine model years to 2010+ emission factors since the compliance deadline is considered to be January 1, 2018, at which time the engine would need to be upgraded and filtered. The remaining ten years will only include reductions based on the 2007 to 2010+ emission factors as shown in the table below. The one-year portion of the surplus period is valid only if the bus is delivered on or before December 31, 2016.

The heavy-duty emission factors in Table D-1 in Appendix D of the Guidelines shall be used for the baseline and reduced engine emission factors. The annual fuel usage as documented in the previous 24 months shall be used as specified in Chapter 5, Section C.5 to calculate emission reductions. The project information can be entered through the Non-Calculation form in the CARL database.

Emission Factors for Split Emission Reduction Calculations

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: April 21, 2016
Contact: Kyle Goff (916) 324-1988

Reference # 2015-11-1
Request: Provide guidance for: 1) appropriate split calculations for replacement of school buses under 2018 engine upgrade/filter compliance requirement and 2) appropriate emission factor for the 1986 rebuilt engine (Project#:2015-001)
Air District: Calaveras County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 4, Section E.4., Chapter 5, Section C.5.(E), Appendix D, Table D-1, Appendix C, Section B.7
ARB Action: Approved

Determination: This revised determination supersedes the original determination with reference # 2015-11 posted on October 16, 2015 to reflect the district's request for emission factors in units of grams per mile.

Calaveras Unified School District is seeking funding to replace five school buses equipped with 1982 to 1989 model year engines with school buses equipped with 2010 model year engines. The existing buses are unable to be retrofitted with particulate matter (PM) filters and have received extensions to meet the PM requirements of the Truck and Bus Regulation. Split funding calculations will be required to determine the funding amount for the surplus emission reductions (oxides of nitrogen (NOx) and reactive organic gases (ROG)). Split calculation methodology as specified in Appendix C, Section B.7. will be used. For an 11-year project life, two years will include reductions from the baseline engine model years to 2010+ emission factors since the compliance deadline is considered to be January 1, 2018, at which time the engine must be upgraded and filtered. The remaining nine years will only include reductions based on the 2007 to 2010+ emission factors as shown in the table below. The two-year portion of the surplus period is valid only if the buses are delivered before 2016.

The heavy-duty Emission Factors in Table D-3 in Appendix D of the Guidelines are to be used for the baseline and reduced engine emission factors. The 1986 engine (serial no. 11354091) will use 1984 emission factors since the engine was rebuilt to 1984 standards. The annual mileage usage as documented in the previous 24 months will be used for each bus. The project information can be entered through the Non-Calculation form in the CARL database.

Emission Factors for Split Emission Reduction Calculations

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: November 17, 2015
Contact: Danielle Robinson  (626) 575-6775

Reference # 2015-11
Request: Provide guidance for: 1) appropriate split calculations for replacement of school buses under 2018 engine upgrade/filter compliance requirement and 2) appropriate emission factor for the 1986 rebuilt engine (Project#:2015-001)
Air District: Calaveras County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 4, Section E.4., Chapter 5, Section C.5.(E), Appendix D, Table D-1, Appendix C, Section B.7
ARB Action: Approved

Determination: Calaveras Unified School District is seeking funding to replace five school buses equipped with 1982 to 1989 model year engines with school buses equipped with 2010 model year engines. The existing buses are unable to be retrofitted with particulate matter (PM) filters and have received extensions to meet the PM requirements of the Truck and Bus Regulation. Split funding calculations will be required to determine the funding amount for the surplus emission reductions (oxides of nitrogen (NOx) and reactive organic gases (ROG)). Split calculation methodology as specified in Appendix C, Section B.7. will be used. For an 11-year project life, two years will include reductions from the baseline engine model years to 2010+ emission factors since the compliance deadline is considered to be January 1, 2018, at which time the engine must be upgraded and filtered. The remaining nine years will only include reductions based on the 2007 to 2010+ emission factors as shown in the table below. The two-year portion of the surplus period is valid only if the buses are delivered before 2016.

The heavy-duty converted Emission Factors in Table D-1 in Appendix D of the Guidelines are to be used for the baseline and reduced engine emission factors. The 1986 engine (serial no. 11354091) will use 1984 emission factors since the engine was rebuilt to 1984 standards. The annual fuel usage as documented in the previous 24 months will be used for each bus. The project information can be entered through the Non-Calculation form in the CARL database.

Emission Factors for Split Emission Reduction Calculations

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: October 16, 2015
Contact: Danielle Robinson  (626) 575-6775

Reference # 2015-05
Request: Allow Original Award Amount for Replacement Project (Project #: CM13/14-16).
Air District: San Luis Obispo County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 5, Section B, Table 5-1; Appendix D, Table D-4
ARB Action: Approved

Determination: The district awarded Dave Spurr Excavating, Inc. an award of $50,000 for a five-year project life under the Fleet Modernization Program after the project received a CBC approval (Reference # 2014-24). The model year 2014 replacement engine was certified to a Family Emission Limit of 0.31 grams per brake horsepower-hour (g/bhp-hr) oxides of nitrogen (NOx) which must use the emission factor for 0.5 g/bhp-hr NOx or cleaner engines for cost-effectiveness calculations. New emission factor tables in Appendix D of the Guidelines were released that included interpolated factors for 0.5 g/bhp-hr NOx engines but, in error, the tables excluded 2010 and newer engines for those factors. In addition, the CARL database did not include the interpolated emission factors for 2010 and newer engines. When the district entered the information into CARL, the resulting calculations showed the project as eligible for the maximum $50,000 grant amount for both a five-year and four-year project life. The district informed the applicant that the project life could be reduced to four years and the applicant chose to have the dealership perform modifications and deliver the truck later to meet the deadline for a four-year project life. When CARL was updated to include the interpolated factors for all applicable engines, the cost-effectiveness calculations changed for the Spurr project and the district learned the four-year project life was no longer eligible for the maximum grant amount and instead only eligible for $45,400. Due to these extenuating circumstances caused by an error in the emission factor tables, the district may award the applicant the maximum grant award of $50,000.

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: March 20, 2015
Contact: Danielle Robinson  (626) 575-6775

Reference # 2015-04
Request: Provide guidance for appropriate split calculations for replacement of school bus with 2018 engine upgrade/filter compliance requirement (Project #: 2014-001).
Air District: Calaveras County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 4, Section E.4., Chapter 5, Section C.5.(E), Appendix D, Table D-3, Appendix C, SectionB.7.
ARB Action: Approved

Determination: Bret Harte Union High School District is seeking funding to replace a 1990 Thomas school bus equipped with a 1990 Caterpillar engine with a new school bus equipped with a 2014 Cummins engine. The existing school bus is unable to be retrofitted with a particulate matter (PM) filter and has received an extension to meet PM requirements of the Truck and Bus Regulation. Split funding calculations will be required to determine the funding amount for the surplus emission reductions (oxides of nitrogen (NOx) and reactive organic gases (ROG)). The baseline medium heavy-duty emission factors in Table D-3 in Appendix D of the Guidelines are to be used. For an 11-year project life, two years will include reductions based on the 1990 to 2010+ emission factors since the compliance deadline is considered to be January 1, 2018, at which time the engine must be upgraded and filtered. The remaining nine years will only include reductions based on the 2007 to 2010+ emission factors as shown in the table below. An annual usage of 19,500 miles per year will be used as shown through historical mileage documentation. Split calculation methodology as specified in Appendix C, Section B.7. will be used. The project information can be entered through the Non-Calculation form in the CARL database.

Table 1: Emission Factors for Split Emission Reduction Calculations

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: March 20, 2015
Contact: Danielle Robinson  (626) 575-6775

Reference # 2014-24
Request: Allow the district to fund a fleet with four to 10 vehicles after the October 1, 2014 changes to the Fleet Modernization chapter of the Guidelines (Project ID: CM13/14-16).
Air District: San Luis Obispo County Air Pollution Control District (APCD)
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 5, Section A, Chapter 4, Section E.
ARB Action: Approved

Determination: The district received the application on September 17, 2014 and deemed it complete on September 24, 2014. They received notice from ARB staff that the applicant had no outstanding violations and open enforcement cases on September 30, 2014. However, the APCO and attorney were unavailable to provide signatures for the contract before October 1, 2014. Considering these factors, the district is authorized to fund the project if all other requirements of the Guidelines are met.

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: October 28, 2014
Contact: Danielle Robinson  (626) 575-6775

Reference # 2014-23
Request: Allow a heavy heavy-duty truck replacement for a baseline medium heavy- duty truck equipped with a heavy heavy-duty engine (Project ID: CM13/14-7).
Air District: San Luis Obispo County Air Pollution Control District (APCD)
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 5, Sections C.3.(C) (2) and (3) and Section C.4.(D).
ARB Action: Approved

Determination: The proposed Fleet Modernization Project would replace a medium heavy-duty weight class truck (GVWR of 32,000 pounds) powered with a heavy heavy-duty engine with a heavy heavy-duty weight class truck (GVWR of 35,000 pounds) powered with a heavy heavy-duty engine. The replacement vehicle will be funded at the medium heavy-duty level. Both the baseline and replacement vehicles are powered with heavy heavy-duty engines and the combined gross vehicle weight of both vehicles are the same. In addition, both vehicles have the same axle configuration. The replacement truck would be used in the same vocation and in exactly the same manner as the baseline truck. A new medium heavy-duty truck with a medium heavy-duty intended service class engine would not be able to perform equivalent work to the baseline truck. Considering these factors, the air district may authorize this truck replacement if all other requirements of the Guidelines are met.

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: October 21, 2014
Contact: Danielle Robinson  (626) 575-6775

Reference # 2014-19
Request: Allow the trade-down of two retrofitted school buses, in lieu of destruction, for two non-retrofitted school buses in a neighboring air district.
Air District: Tuolumne County Air Pollution Control District (APCD)
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 5, Sections C.3.(C) and C.11.(C).
ARB Action: Approved

Determination: A fleet modernization project with Sonora Union High School (donating school district) would replace two retrofitted school buses and, in lieu of their destruction, donate them to the Calaveras Unified School District (recipient school district), which is in a neighboring air district. The Lower Emission School Bus Program provided funding for the retrofit of two Sonora school buses, gross vehicle weight rating (GVWR) of 14,050 pounds and engine model years (MY) 1997, to be donated with remaining contract terms to be fulfilled by the recipient school district. In turn, the recipient school district would dismantle two non-retrofitted school buses, GVWR of 9,500 pounds and engine MY 1988 which have higher NOx and PM emissions and are not subject to the Truck and Bus regulation. The destruction of the older, lighter non-retrofitted school buses provides a substantial reduction in exposure for children in the recipient air district.

The Carl Moyer Program Guidelines (Guidelines) Chapter 5, Section C.11.(C) specify the destruction of the baseline vehicles. To preserve the LESBP public investment of the baseline retrofitted buses and given that the recipient district is destroying school buses not subject to Truck and Bus regulation, the baseline school buses will not be destroyed and will instead remain in service.

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: September 11, 2014
Contact: Nancy Noble  (626) 459-4495

Reference # 2014-13
Request: Allow the district to fund a fleet modernization project with Sonora Union High School that would replace two retrofitted light heavy-duty vehicles that are not yet included in the eligible weight class group and to use extended usage history in determining funding amounts.
Air District: Tuolumne County Air Pollution Control District (APCD)
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 5, Section A., Section C.2.(C), C.3.(C), C.5.(A)-(B).
ARB Action: Approved

Determination: The two light heavy-duty school buses have a gross vehicle weight rating (GVWR) of 14,500 pounds and are currently compliant with the Truck and Bus Regulation. The new replacement buses would provide emission reductions that are surplus to the regulation. Currently, as specified in Chapter 5, Section C.3.(C), the vehicles must be over 19,500 pounds to be eligible. Considering that staff is proposing changes to the Carl Moyer Program Guidelines (Guidelines) that will expand on-road replacement eligibility to include light heavy-duty vehicles with GVWR over 14,000 pounds, these light heavy-duty buses can be replaced under the program.

The Guidelines require usage documentation for the previous 24 months to determine cost-effectiveness of fleet modernization projects as specified in Chapter 5, Section C.2.(C) and C.5.(A). The Guidelines also require that the emission factors, which also affect cost-effectiveness calculations, be based on the baseline and replacement engines as can be seen in Chapter 5, Section C.5.(B). The Tuolumne County APCD submitted school district fleet data to justify use of mileage over the last 10 years, rather than the last two years, for calculation of cost effectiveness and grant amounts. School district data showed that a last-10-year averaging period, while still conservative relative to typical usage during the project life, was more indicative of projected replacement bus usage. ARB staff found the provided data consistent with the usage continuum typical of school buses in other projects and agreed that an extended usage history can be used but it must include the previous 24 months.

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: June 25, 2014
Contact: Danielle Robinson  (626) 575-6775

Reference # 2014-02
Request:Allow the build sheet of a newer, similar model truck to meet the gross vehicle weight rating (GVWR) documentation requirements for the baseline truck in a Fleet Modernization project (Project Number AB923-OR-13-4)
Air District: San Luis Obispo County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 5, Section C.3.(C)(3)
ARB Action: Approved

Determination: The Carl Moyer Program Guidelines require documentation of the existing vehicle's GVWR for fleet modernization projects. As specified in Chapter 5, Section C.3.(C)(3), if a photo of the manufacturer tag showing GVWR or the manufacturer build sheet is unavailable, districts may request a case-by-case approval of alternate GVWR documentation. The existing vehicle is a 1977 Peterbilt dump truck and the manufacturer no longer has record of the build sheet. However, the district has the build sheet for a similar model 1980 Peterbilt dump truck that was used for an earlier project. The district provided the build sheet and photos of both trucks and their associated tags showing model and serial numbers and chassis weights. Since all the documentation provided shows the trucks to be similar models from the same manufacturer, the build sheet documentation from the 1980 truck can be used to meet GVWR documentation requirements for the 1977 truck.

This approval does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost-effective limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations. Please include this case-by-case reference number in the comment field for this project in the CARL database.

Determination Date: March 27, 2014
Contact: Danielle Robinson  (626) 575-6775

Reference # 2013-12
Request: Allow engines certified to an oxides of nitrogen (NOx) family emission limit (FEL) of 0.5 grams per brake horsepower-hour (g/bhp-hr) or less to be funded under the Fleet Modernization Program using an interpolated emission factor for 0.5 g/bhp-hr levels (Project Numbers: CM12/13-4 Mueller Transport; CM12/13-5 JV Express; CM12/13-6 Jeff Dye Trucking)
Air District: San Luis Obispo County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 5, Section C.5.(B)
ARB Action: Approved

Determination: The dealership that will be providing the replacement vehicles for the above listed projects has ordered engines from the manufacturer that will be certified to the 2010 emission standards for on-road heavy-duty diesel engines. The dealership has informed the district that although the delivered engines will meet the 2010 certification requirements, they may be certified to a NOx FEL of 0.5 g/bhp-hr or less, which would require a modified cost-effectiveness calculation. A case-by-case determination is not required for engines delivered that are certified to a NOx emission standard of 0.2 g/bhp-hr. This CBC applies to engines delivered that are certified to a NOx FEL above 0.2 g/bhp-hr, but less than or equal to 0.5 g/bhp-hr.

The Guidelines specify in Chapter 5, Section C.4.(A) that engines certified to a NOx FEL of 1.20 g/bhp-hr or lower are eligible for funding. Chapter 5 also specifies a maximum funding amount of $30,000 and $50,000 for medium and heavy heavy-duty engines certified to a NOx emission level of 0.5 g/bhp-hr or less, respectively, and emission factors listed in Appendix D, Tables D-3 and D-4 are to be used for cost-effectiveness calculations. Tables D-3 and D-4 list emission factors by model years but don't include the applicable emission standards for engines certified to 0.5 g/bhp-hr. The 2010 emission factor based on an emission standard of 0.2 g/bhp-hr, which the replacement engine(s) exceeds, cannot be used. The cost-effectiveness calculations must use interpolated emission factors for medium and heavy heavy-duty engines certified to NOx emissions of 0.5 g/bhp-hr or lower. For medium heavy-duty vehicles, that is 1.19 grams per mile (g/mi) for NOx emissions and 0.03 g/mi for reactive organic gases (ROG) emissions. For heavy heavy-duty vehicles, that is 2.65 g/mi for NOx emissions and 0.2 g/mi for ROG emissions. The district must use the interpolated emission factors for these projects in their local grant database to properly calculate the project cost-effectiveness. Please include this case-by-case reference number in the CARL database comment field for each project listed.

Note this approval is only for the projects listed above and does not constitute a comprehensive review of the projects. It is the district's responsibility to verify that the projects conform to applicable cost effectiveness limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations.

Determination Date: April 18, 2013
Contact: Danielle Robinson  (626) 575-6775

Reference # 2013-09
Request: Allow the repower of a heavy heavy-duty truck using a certified model year 1996-2000 on-road engine.
Air District: San Luis Obispo County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 4, Section D.4.
ARB Action: Not Approved

Determination: The proposed repower project would replace a 1988 heavy-duty diesel engine with a heavy-duty diesel engine with any model year from 1996 to 2000. The truck owner would be required to purchase a verified particulate matter filter using private funds. The proposed vehicle only operates in San Luis Obispo county, an oxides of nitrogen (NOx) exempt county as defined in the Truck and Bus regulations (California Code of Regulations, title 13, section(d)(46)). The regulation exempts vehicles operating exclusively in NOx exempt counties from reducing NOx emissions from existing engines if the engines are retrofitted with particulate matter filters. Chapter 2, Section HH. requires that replacement engines in repower projects be certified to the current applicable emission standard. However, as specified in Chapter 4, Section D.4., repowers specifically for on-road vehicles can use replacement engines certified to a NOx emissions level of 0.5 g/bhp-hr. In addition, single vehicle repowers are prohibited based on the required original engine manufacturer quality assurance process. As a NOx exempt county and with the NOx reductions being surplus to the regulation, the district requested that the project be exempt from the requirements. The NOx emission standards for model years 1996 through 2000 engines are 4.0-5.0 g/bhp-hr and exceed the required emission standards for replacement engines, hence the case-by-case request is not approved.

Determination Date: April 3, 2013
Contact: Danielle Robinson  (626) 575-6775

Reference # 2012-38
Request: Exempt Spurr Company (Spurr) from reflashing the remaining eligible engines in the fleet for Fleet Modernization project (Project ID: CM11/12-4)
Air District: San Luis Obispo County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 5, Section C.2.(I) and Chapter 4, Section D.1.(D)
ARB Action: Approved

Determination: Spurr reflashed a 1996 model year Cummins engine (VIN: 1FVXDMCBVP691010) in their fleet to meet the requirements of the Guidelines, Chapter 5, Section C.2.(I) and Chapter 4, Section D.1.(D). During the reflashing procedure, their engine control module software (ECM) was erased and rendered the vehicle inoperable. After incurring a significant cost of restoring the ECM, Spurr requested that they be exempt from reflashing the remaining engines in their fleet eligible for reflash. After the review of all the documentation regarding the matter, it has been decided that Spurr is exempt from reflashing the requested engines and the reflash requirements for Project CM11/12-4 have been met. Please include this case-by-case reference number in the comment field for the project in the SLOAPCD grant database.

Note this approval is only for the project listed above and does not constitute a comprehensive review of the project nor does it constitute a blanket approval for similar projects. It is the district's responsibility to verify that the project conforms to applicable cost effectiveness limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations.

Determination Date: September 28, 2012
Contact: Danielle Robinson  (626) 575-6775

Reference # 2012-20
Request: Allow engines certified to an oxides of nitrogen (NOx) family emission limit (FEL) of 0.5 grams per brake horsepower-hour (g/bhp-hr) or less to be funded under the Fleet Modernization Program using an interpolated emission factor for 0.5 g/bhp-hr levels (Project Number: AB923-2011-9)
Air District: San Luis Obispo County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 5, Section C.5.(B)
ARB Action: Approved

Determination: The dealership that will be providing the replacement vehicles for the above listed projects has ordered engines from the manufacturer that will be certified to the 2010 emission standards for on-road heavy-duty diesel engines. The dealership has informed the district that although the delivered engines will meet the 2010 certification requirements, they may be certified to a NOx FEL of 0.5 g/bhp-hr or less, which would require a modified cost-effectiveness calculation. A case-by-case determination is not required for engines delivered that are certified to a NOx emission standard of 0.2 g/bhp-hr. This CBC applies to engines delivered that are certified to a NOx FEL above 0.2 g/bhp-hr, but less than or equal to 0.5 g/bhp-hr.

The Guidelines specify in Chapter 5, Section C.4.(A) that engines certified to a NOx FEL of 1.20 g/bhp-hr or lower are eligible for funding. Chapter 5 also specifies a maximum funding amount of $30,000 and $50,000 for medium and heavy heavy-duty engines certified to a NOx emission level of 0.5 g/bhp-hr or less, respectively, and emission factors listed in Appendix D, Tables D-3 and D-4 are to be used for cost-effectiveness calculations. Tables D-3 and D-4 list emission factors by model years but don't include the applicable emission standards for engines certified to 0.5 g/bhp-hr. The 2010 emission factor based on an emission standard of 0.2 g/bhp-hr, which the replacement engine(s) exceeds, cannot be used. The cost-effectiveness calculations must use interpolated emission factors for medium and heavy heavy-duty engines certified to NOx emissions of 0.5 g/bhp-hr or lower. For medium heavy-duty vehicles, that is 1.19 grams per mile (g/mi) for NOx emissions and 0.03 g/mi for reactive organic gases (ROG) emissions. For heavy heavy-duty vehicles, that is 2.65 g/mi for NOx emissions and 0.2 g/mi for ROG emissions. The district must use the interpolated emission factors for these projects in their local grant database to properly calculate the project cost-effectiveness. Please include this case-by-case reference number in the CARL database comment field for each project listed.

Note this approval is only for the project listed above and does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost effectiveness limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations.

Determination Date: July 5, 2012
Contact: Danielle Robinson  (626) 575-6775

Reference # 2012-15
Request: Allow engines certified to an oxides of nitrogen (NOx) family emission limit (FEL) of 0.5 grams per brake horsepower-hour (g/bhp-hr) or less to be funded under the Fleet Modernization Program using an interpolated emission factor for 0.5 g/bhp-hr levels (Project Numbers: CM11/12-6, CM11/12-8, CM11/12-12)
Air District: San Luis Obispo County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 5, Section C.5.(B)
ARB Action: Approved

Determination: The dealership that will be providing the replacement vehicles for the above listed projects has ordered engines from the manufacturer that will be certified to the 2010 emission standards for on-road heavy-duty diesel engines. The dealership has informed the district that although the delivered engines will meet the 2010 certification requirements, they may be certified to a NOx FEL of 0.5 g/bhp-hr or less, which would require a modified cost-effectiveness calculation. A case-by-case determination is not required for engines delivered that are certified to a NOx emission standard of 0.2 g/bhp-hr. This CBC applies to engines delivered that are certified to a NOx FEL above 0.2 g/bhp-hr, but less than or equal to 0.5 g/bhp-hr.

The Guidelines specify in Chapter 5, Section C.4.(A) that engines certified to a NOx FEL of 1.20 g/bhp-hr or lower are eligible for funding. Chapter 5 also specifies a maximum funding amount of $30,000 and $50,000 for medium and heavy heavy-duty engines certified to a NOx emission level of 0.5 g/bhp-hr or less, respectively, and emission factors listed in Appendix D, Tables D-3 and D-4 are to be used for cost-effectiveness calculations. Tables D-3 and D-4 list emission factors by model years but don't include the applicable emission standards for engines certified to 0.5 g/bhp-hr. The 2010 emission factor based on an emission standard of 0.2 g/bhp-hr, which the replacement engine(s) exceeds, cannot be used. The cost-effectiveness calculations must use interpolated emission factors for medium and heavy heavy-duty engines certified to NOx emissions of 0.5 g/bhp-hr or lower. For medium heavy-duty vehicles, that is 1.19 grams per mile (g/mi) for NOx emissions and 0.03 g/mi for reactive organic gases (ROG) emissions. For heavy heavy-duty vehicles, that is 2.65 g/mi for NOx emissions and 0.2 g/mi for ROG emissions. The district must use the interpolated emission factors for these projects in their local grant database to properly calculate the project cost-effectiveness. Please include this case-by-case reference number in the CARL database comment field for each project listed.

Note this approval is only for the project listed above and does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost effectiveness limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations.

Determination Date: June 7, 2012
Contact: Danielle Robinson  (626) 575-6775

Reference # 2012-07
Request: Allow an engine certified to an oxides of nitrogen (NOx) family emission limit (FEL) of 0.3 grams per brake horsepower-hour (g/bhp-hr) to be funded under the Fleet Modernization program using an interpolated emission factor for 0.5 g/bhp-hr levels (Project ID: AB923-OR-07)
Air District: San Luis Obispo County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 5, Section C.5.(B)
ARB Action: Approved

Determination: The proposed Fleet Modernization Project would replace a 1998 model year heavy-duty engine with a 2012 model year heavy-duty engine. The replacement engine executive order specifies a NOx emission standard of 0.2 g/bhp-hr and NOx FEL of 0.3 g/bhp-hr. The Guidelines specify in Chapter 5, Section C.4.(A) that engines certified with a NOx FEL of 1.20 g/bhp-hr or lower are eligible for funding. Chapter 5 also specifies a maximum funding amount of $50,000 for heavy heavy-duty engines certified to a level of 0.5 g/bhp-hr or less and emission factors listed in Appendix D, Table D-4 are to be used for cost-effectiveness calculations. Table D-4 lists emission factors by model years but doesn't include the applicable emission standards for engines certified to 0.5 g/bhp-hr. The 2010 emission factor based on an emission standard of 0.2 g/bhp-hr, which the replacement engine exceeds, cannot be used. The cost-effectiveness calculations must use interpolated emission factors for heavy heavy-duty engines certified to NOx emissions of 0.5 g/bhp-hr or lower (2.65 grams per mile (g/mi) for NOx and 0.2 g/mi for reactive organic gases). The district must use the interpolated emission factors for this AB923 project in their local grant database to properly calculate the project cost-effectiveness. Please include this case-by-case reference number in the comment field for the project in the SLOAPCD grant database.

Note this approval is only for the project listed above and does not constitute a comprehensive review of the project. It is the district's responsibility to verify that the project conforms to applicable cost effectiveness limits, all other applicable guidelines and statutes, and is surplus to existing emission control regulations.

Determination Date: March 20, 2012
Contact: Danielle Robinson  (626) 575-6775

Reference # 2011-47
Request: Allow a heavy heavy-duty truck replacement for a baseline medium heavy-duty truck equipped with a heavy heavy-duty engine (Project ID: CM09/10-11)
Air District: San Luis Obispo County Air Pollution Control District
Guidelines Section(s): 2011 Carl Moyer Guidelines, Chapter 5, Section C.3.(C)(1) and (2) and Section C.4.(D)
ARB Action: Approved

Determination: The proposed Fleet Modernization Project would replace a medium heavy- duty weight class truck (GVWR of 33,000 pounds) powered with a heavy heavy-duty engine with a heavy heavy-duty weight class truck (GVWR of 34,000 pounds) powered with a heavy heavy-duty engine. Both the baseline and replacement vehicles are powered with heavy heavy-duty engines and the combined gross vehicle weight of both vehicles are the same. The replacement truck would be used in the same vocation and in exactly the same manner as the baseline truck. In addition, a new medium heavy-duty truck with a medium heavy-duty intended service class engine would not be able to perform equivalent work to the baseline truck. Considering these factors, the air district may authorize this truck replacement if all other requirements of the Guidelines are met.

Determination Date: July 22, 2011
Contact: Danielle Robinson  (626) 575-6775

Reference # 2010-55
Request: Applicant requested approval to repower four (4) 1997 model-year diesel solid waste collection vehicles (SWCV) with 2010 model-year natural gas engines. (SCAQMD Project #45).
Air District: South Coast AQMD
Guidelines Section(s): 2008 Guidelines, Chapter III, Section IV(d)
ARB Action: Not Approved

Determination: The applicant was not able to provide documentation from the engine manufacturer of successful testing of a prototype with the same engine and chassis configuration. Applicant may reapply for funding after a successful prototype repower is completed, consistent with the on-road repower criteria in Chapter 4 of the 2011 Carl Moyer Program Guidelines.

Determination Date: May 05, 2011
Contact: Lynsay Carmichael  (916) 322-0407

Reference # 2010-34
Request: Applicant requested approval to repower 25 on-road diesel solid waste collection vehicles (SCAQMD Project #63).
Air District: South Coast AQMD
Guidelines Section(s): 2008 Guidelines, Chapter III, Section IV(d)
ARB Action: Approved

Determination: The proposed repower project involves a substantial quantity of the same chassis and engine combination, which allows repowered vehicles to meet the requirements of the engine manufacturer quality assurance process that is equivalent to an OEM package. The proposed project includes a prototype vehicle that will be thoroughly reviewed and tested to ensure that the installation meets OEM requirements, and the successful prototype installation will be replicated in the other vehicles with the same chassis and engine combination. The district may approve the proposed repower project subject to the following conditions:

(1) Carl Moyer Program funding may not be used for any costs associated with the prototype vehicle or vehicles;

(2) Project contract(s) may not be executed until the prototype testing specified by the engine manufacturer is successfully completed;

(3) Written documentation from the engine manufacturer confirming that the prototype was successful must be maintained in the project file;

(4) Particulate matter (PM) emission reductions are not surplus to the SWCV Regulation, therefore PM must not be included in the cost-effectiveness calculation.

Determination Date: September 21, 2010
Contact: Peter Christensen (916) 322-1520

Reference # 2010-16
Request: Applicant is requesting an exception to the requirement to install a diesel particulate filter as part of an on-road repower project.
Air District: Northern Sierra AQMD
Guidelines Section(s): 2005 Guidelines, Chapter I, Section V(D)
ARB Action: Approved

Determination:  This repower with retrofit project was originally approved based on a cost-effectiveness calculation that included the repower cost and the cost of a passive filter which was verified for the engine. The engine repower component of this project has already been completed and is successfully generating emission reductions.  Subsequently, data logging performed by an authorized retrofit installer shows that the exhaust temperatures are too low for any passive filter. Documentation has been provided by the retrofit manufacturer. The geographic truck activity pattern does not allow for a filter that uses plug-in type active regeneration. An active filter is verified for the engine that uses an on-board fuel burner that would not be subject to the same geographic activity issue, but the cost of that filter is substantially higher than the passive filter included in the funding contract.  Since the higher cost was not included in the original contract, it would be prohibitive for the applicant. Therefore, the applicant may complete this project without installing a retrofit. The emission reductions achieved by the repower alone must be cost-effective with respect to the repower-alone funding amount. No funding may be granted toward the cost of the DPF.
Requirements Upon Approval

• In addition, the air district must notify the grantee in writing that the truck is subject to the Statewide Truck & Bus Regulation and must meet all compliance deadlines and other regulatory requirements.

Determination Date: June 3, 2010
Contact: Peter Christensen (916) 322-1520

Reference # 2010-02
Request: Extend the June 30, 2010 delivery deadline for new purchase of solid waste collection vehicles.
Air District: South Coast AQMD
Guidelines Section(s): Chapter III, Section IV(c)(2)
ARB Action: Not approved

Determination: The June 30, 2010 delivery deadline is confirmed for solid waste collection vehicles. The apparent reason for a potential delivery delay is related to the applicant’s limited resources, which is not sufficient to justify an extension.

Determination Date: Dec. 24, 2009
Contact: Peter Christensen (916) 322-1520

Reference # 2010-01
Request: Extend the June 30, 2010 delivery deadline for new purchase of urban buses.
Air District: South Coast AQMD
Guidelines Section(s): Chapter III, Section IV(c)(2)
ARB Action: Approved

Determination: The lead time for procurement of urban transit buses is unusually long due to higher than usual demand, which is beyond the control of the applicant or air district. Therefore, for this urban bus new purchase project, that had a fully executed contract before December 31, 2009, the air district may extend the delivery deadline to June 30, 2011, rather than the existing July 1, 2010 deadline. Air districts with similar transit bus projects with contracts executed on or before December 31, 2009 may request case-by-case approval for a similar delivery deadline extension.
    Documentation Required

• The applicant must provide documentation from the bus manufacturer (for inclusion in the project file) that buses cannot be delivered by June 30, 2010, and provide a time line for delivery.

Determination Date: Dec. 22, 2009
Contact: Peter Christensen (916) 322-1520