Off-Road Diesel Engine Emissions Factors | - Emission Factors 2017 Updates
- Other References
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Agricultural Equipment | - Equipment Class: Agricultural equipment such as tractors, combines, cotton pickers, and equipment used at agricultural first processors such as forklifts and loaders
- Includes: Self-propelled equipment of all horsepowers and fuels
- Emissions Inventory
- Additional Links
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Cargo Handling Equipment (CHE) | - Equipment Class: Equipment used at ports and intermodal rail yards
- Includes: Diesel, propane, gasoline, and electric equipment
- Data Sources: Inventory is based on 2019 reports from Port of Los Angeles, Port of Long Beach, and Port of Oakland, and 2019 data reported to CARB for intermodal railyards and ports not previously listed.
- Emissions Inventory
- Additional Links
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Construction, Mining, Industrial and Oil Drilling Equipment over 25hp, Diesel, Subjected to In-Use Regulation | - Equipment Class: Self-propelled equipment used in all off-road applications (except for agriculture), this includes but is not limited to construction, mining, oil drilling and industrial
- Includes: Over 25 horsepower, self-propelled, diesel equipment only
- Emissions Inventory
- Additional Links
- Data Sources: Inventory based on DOORS reporting data from 2008/2009. Growth is based on construction-starts forecast, updated in 2011
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Construction, Mining, Industrial and Oil Drilling Equipment, Diesel and Gasoline of all horsepower, Not Subject to In-Use Regulation | - Equipment Class: Construction and mining and industrial equipment such as small backhoes, mini-excavators or other small equipment, forklifts, etc.
- Includes: Diesel under 25 horsepower, or gasoline of all horsepowers, self-propelled
- Data Sources: Inventory is based on the Off-Road 2007 model
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Commercial Harbor Craft (CHC) | - Equipment Class: Harbor craft, barges, commercial fishing, tugboats used at ports
- Includes: Diesel vessels
- Data Sources: 2019 CARB reporting data, Merchant Vessel database from US Coast Guards
- Emissions Inventory:
- Additional Link
- Archive
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Forestry Equipment 
| - Equipment Class: Forestry equipment includes mobile equipment used for on-site logging and mill operations.
- Includes: self-propelled diesel equipment of all horsepowers
- Data Sources: Forestry-specific statewide survey, on-site operations and mill logging activity, timber harvest statistics, and geographical information on logging activities.
- Emissions Inventory
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Large Spark-Ignition (Forklift) Equipment 
| - Equipment Class: Large Spark-Ignition (LSI) equipment includes forklifts, sweeper/scrubbers, and tow tractors used in industrial operations including but not limited to manufacturing, wholesale, transportation and utilities, and retail.
- Includes: natural gas and gasoline-powered equipment of all horsepowers
- Data Sources: DOORS 2020 LSI Database, DOORS 2020 Fleet Surveys, Fullerton Survey, 2020 ITA California and National Forklift Sales, and Census survey on industrial warehouse space.
- Emissions Inventory:
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Locomotives | - Freight Locomotives: Class I
- Equipment Class: Locomotive engines used in all freight applications
- Includes: Diesel locomotives
- Data Sources: Class I Inventory is based on 2010 ~ 2018 data from Class I Locomotive companies in California.
- Emissions Inventory
- Additional Links
- Locomotives - Class I Switchers
- Equipment Class: Switcher locomotives operating at Class I Rail Yards in California
- Includes: Diesel locomotives
- Data Sources: 2017 base year data provided by Class I Locomotive companies in California
- Emissions Inventory
- Locomotives - Freight Short Line / Class III
- Equipment Class: Local or regional freight applications
- Includes: Diesel locomotives
- Data Sources: Data received for 2016 from most Class III rail lines in California
- Emissions Inventory
- Locomotives - Passenger
- Equipment Class: Locomotive engines used in any commuter or passenger application
- Includes: Diesel or electric locomotives.
- Data Sources: Data received for 2016 from major passenger rail lines in California
- Emissions Inventory
- Locomotives – Military and Industrial
- Equipment Class: Military and Industrial locomotives operating in California
- Includes: Diesel locomotives
- Data Sources: Data received for 2020 from M&I locomotive operators in California
- Emissions Inventory
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Ocean Going Vessels | - Equipment Class: Ocean going vessels
- Includes: Diesel main, auxiliary and boiler engines on ocean going vessels greater than 400 feet in length, 10,000 gross tons
- Emissions Inventory
- Additional Links
- Archive
- 2019 At Berth Inventory
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Portable Equipment OVER 50 Hp, Diesel, Subject to Portable ATCM (Updated, October 2017) | - Equipment Class: Portable engines
- Includes: Engines over 50 horsepower, diesel only
- Data Sources: 2016 Portable Engine Registration Program data (PERP)
- Emissions inventory
- Additional Links
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Portable Equipment UNDER 50 Horsepower, Diesel and Gasoline, Not Subject to Portable ATCM | - Equipment Class: Portable Engines
- Includes: Diesel under 50 horsepower, or gasoline of all horsepowers, portable (not self propelled, not stationary)
- Data Sources: Inventory is based on the OFFROAD2007 model
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Transport Refrigeration Units (TRU) | - Equipment Class:Transport Refrigeration Units (TRUs)
- Includes: All Horsepower (all under 50hp), TRUs for trucks, trailers, containers, all fuels (currently only diesel)
- DRAFT 2019 Emission Inventory Methodology: For public comment prior to official release in Summer 2020
- Data Sources: 2011 ARBER TRU Reporting Database
- Emissions Inventory
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| Off-Road Gas Equipment | |
