This webpage provides links to ARB's various emission inventory programs. Mobile Sources Emissions Inventory; Program Links.
2019 GHG Inventory The California Greenhouse Gas Emissions for 2000 to 2017, Trends of Emissions and Other Indicators, summarizes and highlights the major annual changes and notable longer-term trends of each year's GHG inventory. District Rules Log Database; Enforcement Program; Executive Orders; Federal Clean Air Act; Finding on EO S-2-03 Rule Reviews; OAL Website for CCRs; Title 13 & 17 Regulations; Data & Statistics. You may need Free Viewers to view files on this page. Note: New EMFAC Web Platform is available! Please visit Data Type: Emissions Emission Rates … Background; Categories; Current Methods; Workshop and Meetings; Historical Methods; Training Materials; Resources. An emission inventory is an estimation of the amount of pollutants discharged into the atmosphere that can be broken down by specified source categories in a certain geographical area and within a specified time span (e.g., in a calendar year). ARB's Emission Inventory Activities. This table lists public, online sources of fuel efficiency and CO 2 emission data, collected and published by regulatory agencies, for vehicles sold or registered under their jurisdiction.. Due to current stay at home orders, staff in the Emissions Certification and Compliance Division are teleworking until further notice.

Annual Certification Data for Vehicles, Engines, and Equipment. As part of the certification process, data is generated to demonstrate compliance with federal regulations. Off-Road Certification Database. If you know of an official source of fuel economy data that is not listed here but should be, please contact Zifei Yang. The database provides the detailed data without taking into account other factors required for the calculation of specific emissions targets (such as phase-in percentages, credits for low emitting vehicles and E85 fuelled vehicles, or eco-innovation credits) that vary over the years . The data provided below represents information that is most commonly requested. It provides easy-to-read graphs and explanations to illuminate California's progress in its commitment to reduce climate-changing emissions. Last updated June 12, 2017 . 2018 GHG Emissions Data Under California’s Regulation for the Mandatory Reporting of Greenhouse Gas Emissions (MRR), industrial sources, fuel suppliers, and electricity importers must report their annual GHG emissions to the California Air Resources Board (CARB). Overview. Consequently, we have implemented new review and approval processes for new vehicle/engine/equipment certification applications.