An official website of the United States government.

Due to a lapse in appropriations, EPA websites will not be regularly updated. In the event of an environmental emergency imminently threatening the safety of human life or where necessary to protect certain property, the EPA website will be updated with appropriate information. Please note that all information on the EPA website may not be up to date, and transactions and inquiries submitted to the EPA website may not be processed or responded to until appropriations are enacted.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Analytical Methods for Measuring Pesticide Residues

The EPA staff who manage pesticide residue methods are in the process of validating the available residue analytical methods. Once validated, the methods will be available on this page. The unvalidated methods can be viewed in the archive. Search EPA Archive Use "Index of residue analytical methods (RAM)" as the search term. 

For further information and access to residue methods contact Thuy Nguyen (