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Vehicles and Engines

  • Vehicles and Engines

    On this page, you will find links to information about nonroad engines and highway vehicles.

Importing into the
United States

A harbor where ships load and unload cargo. A link to https://www.epa.gov/importing-vehicles-and-engines
  • Learn about importing
  • Publications and forms
  • Importing Canadian vehicles
  • Information for independent commercial importers (ICIs)
  • Certification guidance
  • Exporting

Certification and Compliance

A button on an electronic device to select Compliance information. A link to https://www.epa.gov/ve-certification
  • Overview of certification & compliance
  • Onroad
  • Nonroad
  • How to register for the EV-CIS System

Regulations for Emissions

A gavel a judge would use. A link to https://www.epa.gov/regulations-emissions-vehicles-and-engines
  • Regulations for highway vehicles and engines
  • Regulations for nonroad vehicles and engines
  • Greenhouse gas regulations
  • Federal Fleet Requirements (EISA 141)

Fuel Economy
 

A fuel pump at a station. A link to https://www.epa.gov/fueleconomy
  • Basic information on fuel economy labeling
  • Automotive Trends Report
  • Find a SmartWay vehicle

Data for Compliance
and Fuel Economy

A decorative image of a bar chart. A link to https://www.epa.gov/compliance-and-fuel-economy-data
  • Annual certification test data
  • Engine certification data
  • Test data for annual Fuel Economy Guide
  • Data on cars used for testing fuel economy
  • Reports on cars used for testing fuel economy


Violations and Recalls

A word cloud with words related to Recalls. A link to https://www.epa.gov/recalls
  • Actions to void certificates
  • Recalls
  • Fuel economy label updates

Related Topics

  • Green Vehicle Guide
  • Fuels Registration, Reporting, and Compliance Help 
  • Air Enforcement
  • Diesel Fuel Standards
  • Gasoline Standards
  • Renewable Fuel Standard Program
 
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on April 11, 2025
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