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 www.epa.gov. 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 This website is no longer updated and links to external websites and some internal pages may not work.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 »

Inert Ingredient 21-Day Content Screen Worksheet

Under the Pesticide Registration Improvement Extension Act (PRIA 3), EPA has 21 days after it receives the application and the fee to conduct an initial screen of the application’s contents for completeness and for the applicant to make any necessary corrections. If the contents are not complete at the end of the 21 days, we may reject the application.

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