An official website of the United States government.

Standard Operating Procedure for Using the NAFTA Guidance to Calculate Representative Half-life Values and Characterizing Pesticide Degradation

In 2011, EPA’s Environmental Fate and Effects Division (EFED) in the Office of Pesticide Programs and Canada’s Pesticide Management Regulatory Authority (PMRA) formalized the NAFTA degradation kinetics project.

If you are reviewing or reproducing results initially obtained before this guidance was issued in March 2015, see Standard Operating Procedure (Superseded) for Using the NAFTA Guidance to Calculate Representative Half-life Values and Characterizing Pesticide Degradation. Search EPA Archive

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