Contact Us to ask a question, provide feedback, or report a problem.
Last updated on December 2, 2024
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
For 50 years, EPA has provided a comprehensive analysis of the light-duty automotive industry.
Read more on our nation’s plan to decarbonize transportation and why it is important.