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Vehicles and Engines

Importing into the
United States

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Certification and Compliance

  • Overview of certification & compliance
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  • How to register for the EV-CIS System

Regulations for Emissions

  • Regulations for highway vehicles and engines
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  • Greenhouse gas regulations
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Fuel Economy
 

  • Basic information on fuel economy labeling
  • Automotive Trends Report
  • Find a SmartWay vehicle

Data for Compliance
and Fuel Economy

  • 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

  • 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 August 5, 2022
United States Environmental Protection Agency

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