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LCFS Life Cycle Analysis (LCA) - Archive

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Previous Life Cycle Analysis Models

CA-GREET3.0 Model and Tier 1 Simplified Carbon Intensity Calculators

The amendments to the LCFS regulation the Board adopted at its September 2018 hearing replace CA-GREET2.0 with the CA-GREET3.0 model and Tier 1 Simplified CI Calculators for LCFS fuel life cycle analysis. The CA-GREET3.0 model is used to generate the carbon intensities (CIs) of all fuel pathways, including Lookup Table pathways and applicant-specific Tier 1 and Tier 2 pathways.

Effective January 4, 2019 (released August 13, 2018*)

*Minor changes to models posted on August 13, 2018 are documented in the second LCFS errata.

CA-GREET3.0 Supplemental Document and Tables of Changes. The CA-GREET3.0 model was developed from GREET1 2016 developed at Argonne National Laboratory. Argonne’s currently supported GREET versions are available. The changes staff made in converting GREET1 2016 into CA-GREET3.0 are documented in this document.

Lookup Table Pathways (Table 7-1)

CA-GREET3.0 Lookup Table Technical Support Documentation. Describes the calculations, assumptions, and conditions for using the Lookup Table pathways developed by CARB using CA-GREET3.0. The CI of Lookup Table pathways for California Average Grid Electricity used in Transportation and the Smart Charging/Smart Electrolysis pathways are subject to annual updates, pursuant to section 95488.5(d). For the 2019 CIs of these electricity pathways, visit LCFS Pathway Certified Carbon Intensities and technical documentation.

Temporary Pathways Table (Table 8)

Temporary pathways certified pursuant to section 95488.9(b)(4) of the LCFS regulation:

September 29, 2015 release (in use from January 2016 to December 2018): 

2009

ARB Classic URL
https://ww3.arb.ca.gov/fuels/lcfs/ca-greet/ca-greet.htm
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Alternative Fuels: Archived E85 Meetings & Workshops

The table below lists all archived E85 Ethanol meetings & workshops. Current meetings can be found at Alternative Fuels Meetings & Workshops. 

DateDescription & Materials
September 8, 2010

CARB Fuels Workshop in Sacramento, California from 1:00 p.m. - 4:30 p.m. to discuss updates to the E85 Specifications, amendments to the CaRFG regulations, and an E10 certification fuel.

April 15, 2010

CARB Fuels Workshop in Sacramento from 9:30 a.m. - 12:00 p.m. to discuss possible updates to the E85 specifications.

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Alternative Fuels: Archived CNG Meetings & Workshops

The table below lists all archived Compressed Natural Gas (CNG) meetings & workshops. Current meetings can be found at Alternative Fuels Meetings & Workshops.  

DateDescription & Materials
May 19, 2010

Public Meeting in Sacramento from 9:00 a.m. to 12:00 p.m. to Discuss Compressed Natural Gas (CNG) Fuel Specifications.

August 3, 2005

Public Consultation Meeting in Sacramento from 10:00 a.m. to 3:00 p.m. to Discuss a Draft Proposed Concept to Revise the Motor Vehicle CNG Specifications.

  • Meeting Notice and Agenda
  • Draft CNG Specifications Proposal
  • ARB Staff Presentation (PPT) or (PDF)
  • Research Needs:
    • Aspen Environmental Group: Natural Gas Heat Content Surge by William Walters (PPT) or (PDF)
    • California Energy Commission: Public Interest Natural Gas Air Quality Research Program by Marla Mueller (PPT) or (PDF)
  • Industry Presentations:
    • Bevilacqua-Knight, Inc.: Comments On The Proposed CARB Alternative Fuel Specifications by Steven Sokolsky (PPT) or (PDF)
    • California Natural Gas Vehicle Coalition: NGV Commercial Fuel Spec by Mike Eaves (PPT) or (PDF)
    • Engine Manufacturers Association: Presentation at the CARB Workshop by Roger Gault (PPT) or (PDF)
    • Gas Technology Institute: Natural Gas Composition for NGVs by William E. Liss (PPT) or (PDF)
    • Pacific Gas and Electric Company: Comments to the CARB Draft Proposed Concept &ndash; CNG Motor Vehicle Specifications by Tony Estrada (PPT) or (PDF)
    • Shell North America LPG: Presentation at the CARB Workshop by Edgar Kuipers (PPT) or (PDF)
    • SoCal Gas: Comments on the CARB Draft Proposed Concept to Revise Motor Vehicle CNG Specifications by Edwin Harte (PPT) or (PDF)
    • Southwest Research Institute: Study on the Effect of Varying Fuel Composition on Fuel Supplied to Cummins and Detroit Diesel Gas Engines by James Chiu (PPT) or (PDF)
    • Western States Petroleum Association and California Independence Petroleum Association: Presentation at the CARB Workshop by Tom Umenhofer (PPT) or (PDF)
  • Comment Letters:
February 17 and 18, 2005

Change of Date: Natural Gas Quality Workshop Notice

The California Energy Commission and the California Public Utilities Commission will conduct a joint workshop to address natural gas quality issues on February 17 and 18, 2005 in San Francisco, CA.

December 8 and 9, 2004

Natural Gas Quality Workshop Notice   

The California Energy Commission and the California Public Utilities Commission will conduct a joint workshop to address natural gas quality issues on December 8 and 9, 2004 in San Francisco, California.

The workshop is being conducted in collaboration with the California Air Resources Board and the California Department of Conservation’s Division of Oil, Gas, and Geothermal Resources.

May 9, 2002

Notice of Cancellation

The Hearing for consideration of amendments to the California Alternative Fuels for Motor Vehicle Regulations has been cancelled. A new notice will be published at least 45 days in advance of the public hearing.   

This notice can be accessed from our website.

March 28, 2002

Notice of Change Location

The Meeting Location for Public Hearing scheduled on May 16, 2002 for considering the adoption of Proposed Amendments to the Compressed Natural Gas and Liquefied Petroleum Gas Specifications in the California Alternative Fuels for Motor Vehicle Regulations has been changed.    

For more information please go to the formal rulemaking area.

February 19, 2002

Notice of Postponement

The Public Hearing scheduled on February 21, 2002 for considering the adoption of: Proposed Amendments to the Compressed Natural Gas and Liquefied Petroleum Gas Specifications in the California Alternative Fuels for Motor Vehicle Regulations has been postponed.    

For more information please go to the formal rulemaking area.

February 14 and 15, 2002

Public Meeting Notice and Agenda to Discuss Proposed Amendments CNG and LPG Motor Vehicle   
Fuel Specifications

December 21, 2001Proposed Amendments to the Compressed Natural Gas and Liquefied Petroleum Gas Specifications in the California Alternative Fuels for Motor Vehicle Regulations. For more information please go to the formal rulemaking area.
March 7, 2001

Public meeting notice and agenda to discuss CNG motor vehicle fuel quality. 

June 21, 2000

Workshop notice and agenda to discuss the need to amend the alternative fuels regulations for LPG or CNG, and draft concepts.

October 29, 1998

Workshop Notice for October 29, 1998 Re: Evaluation of the Motor Vehicle Fuel Specifications for Compressed Natural Gas

CARB Gives First Time Approval to Compressed Natural Gas Truck Parts   
CARB Certifies State's First Compressed Natural Gas Bus   
CARB Demonstrates First Natural Gas Powered "Clean Air" School Bus

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