An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

International Cooperation

2018 Agreement on Environmental Cooperation among the Governments of the United States of America, the United Mexican States, and Canada

The Environmental Cooperation Agreement (ECA) among the United States, Mexico and Canada was recently completed in parallel with United States of America, United States of Mexico, and Canada (USMCA) trade negotiations.  The ECA signing will be completed in December, 2018; the version below is unsigned.  The ECA will take effect upon entry into force of the USMCA.

Under the ECA, the United States, Mexico and Canada will cooperate to reduce pollution, strengthen environmental governance, conserve biological diversity, and sustainably manage natural resources. The new ECA will modernize and enhance trilateral cooperation, including by supporting implementation of the environment commitments in the USMCA. 

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.