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Modeling and Inventories

MOBILE5 Vehicle Emission Modeling Software

This web site contains information about MOBILE5, including vehicle emission modeling software for MOBILE5a, MOBILE5a-h, and MOBILE5b. Software for these three versions are also found on this web site. MOBILE5 estimates emissions of hydrocarbons, carbon monoxide, and oxides of nitrogen from highway vehicles.
Note: MOBILE6 is EPA's most up-to-date model for estimating these emissions.

Or, contact Information for MOBILE Model:

  • Hardcopy/disk ordering info from NTIS
  • MOBILE Model Information Contact: fax (734-214-4939) or email: mobile@epa.gov
  • EPA-MOBILENEWS Listserver: Full description and subscription information

NOTE: You will need Adobe Acrobat Reader, available as a free download, to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Acrobat Reader.

Guidance on MOBILE Use
  • January 2002 Guidance on when MOBILE6 must be used for State Implementation Plans and Conformity.
MOBILE5 Information Sheets
MOBILE5b Emission Factor Model
MOBILE5a Emission Factor Model

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