Federal Register - "Official Release of EMFAC2017 Motor Vehicle Emission Factor Model for Use in the State of California"

Title: Official Release of EMFAC2017 Motor Vehicle Emission Factor Model for Use in the State of California Source: Federal Register Data/Action: Environmental Protection Agency (Notice) Date: 8/15/2019 Text Preview: ...ENVIRONMENTAL PROTECTION AGENCY [EPA-R09-OAR-2019-0472; FRL-9998-27-Region 9] Official Release of EMFAC2017 Motor Vehicle Emission Factor Model for Use in the State of California AGENCY: Environmental Protection Agency (EPA). ACTION: Notice of availability. ----------------------------------------------------------------------- SUMMARY: The Environmental Protection Agency (EPA)... ...the most current version of the motor vehicle emissions model approved by the EPA. Since the EMFAC model is used only in California, the EPA's approval and the... ...EPA, Region 9, 75 Hawthorne Street, San Francisco, California 94105-3901. SUPPLEMENTARY INFORMATION: Copies of the official version of the EMFAC2017 model, including technical support documents, are available on the California Air Resources Board (CARB) website: http://www.arb.ca.gov/msei/categories.htm#onroad_motor_vehicles . Throughout this document, ``we,'' ``us,'' and ``our'' refer to the EPA...