Advanced Clean Cars | |
Clean Cars Standards - Pavley, Assembly Bill 1493 | |
SB 375 - Sustainable Communities |
The Off-Road model is now being replaced by category specific methods and inventory models that are being developed for specific regulatory support projects. The categories listed below have been or are being updated with new methods and data. Where available, new inventories and models are provided. If a category is not listed below, OFFROAD2007 is the current model for estimating emissions. A comprehensive web query tool, OFFROAD2021 is available to access the most recent model outputs from all offroad categories.
| OFFROAD2021 Database | |
Gasoline Category | |
Diesel Category | |
Workshops | |
Off-Road Archives |
The EMFAC emissions model is developed and used by CARB to assess emissions from on-road vehicles including cars, trucks, and buses in California, and to support CARB's regulatory and air quality planning efforts to meet the Federal Highway Administration's transportation planning requirements. USEPA approves EMFAC for use in State Implementation Plan and transportation conformity analyses.
| EMFAC Models | |
Passenger Cars and Light Trucks | |
Heavy Duty Diesel Trucks | |
Training Materials | |
Meetings and Workshops | |
On-Road Archives |
Category specific emissions estimates have been developed over the past several years in support of specific agency regulatory objectives. The EMFAC emissions model is developed and used by CARB to assess emissions from on-road vehicles including cars, trucks, and buses in California, and to support CARB's regulatory and air quality planning efforts to meet the Federal Highway Administration's transportation planning requirements. US EPA approves EMFAC for use in State Implementation Plan and transportation conformity analyses. In the past CARB released the Off-Road model which calculated emissions from off-road sources. The Off-Road model is now being replaced by category specific methods and inventory models that are being developed for specific regulatory support projects. The categories listed below have been or are being updated with new methods and data. Where available, new inventories and models are provided.
Mobile Source Inventories for California | |
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On-Road Category
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Off-Road Equipment
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| January 2023 Second Public Workshop for Large-Spark Ignition Forklift Emissions Inventory |
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| October 2022 Public Workshop for the EMFAC202Y Model |
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| April 2022 Public Workshop for Large-Spark Ignition Equipment Emissions Inventory |
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| September 2021 Public Workshop for Cargo Handling Equipment and Ocean-Going Vessels Emissions Inventories |
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| March 2021 Public Workshop for the Development of the California Recreational Marine Vessel Emissions Inventory |
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| December 2020 Public Workshop on the EMFAC202x Model |
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| September 2020 Public Workshop for Locomotive Emission Inventory |
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| July 2020 Public Workshop on the EMFAC202x Model |
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April 2020 SORE2020 Model Webinar - Q&A |
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March 2020 Public Workshop for SORE2020 Model |
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October 2019 Public Workshop on the EMFAC202x Model |
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February 2019 Public Workshop on the Draft At Berth Ocean Going Vessel Emission Inventory |
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November 2017 Public Workshop on Updates to CARB's EMFAC2017 Model |
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June 2017 Public Webinar Workshop on Updates to CARB'S EMFAC2017 Model |
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June 2015 EMFAC2014 Online Training Webinar |
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November 2014 Public Workshop: Mobile Source Emissions Inventory - Updates for 2014 | |
October 2013 Public Workshop: Mobile Source Emissions Inventory - Updates for 2013 | |
June 2013 Public Workshop: Improving Mobile Source Planning Tools | |
May 2001 Public Workshop: Introduction to EMFAC2001 Model |
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As part of air quality planning and regulatory development, CARB often holds workshops that discuss mobile source emissions inventories.
CARB provides training materials such as handbooks and webinars on EMFAC and mobile source emissions inventory.
Archive documents and materials for the ONROAD category.
| EMFAC Models | |
| Archived Documentation |
Archive documents and materials for the Off-Road category.
| OFFROAD2007 Model | |
| Archived Documentation |