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 This website is no longer updated and links to external websites and some internal pages may not work.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

Overview of Issues Related to the Standard Operating Procedures For Pesticide Residential Exposure Assessment

This document, "Overview of Issues Related to the Standard Operating Procedures (SOPs) for Residential Exposure Assessment," presents seven key issues concerning the calculation of residential and other non-occupational pesticide exposures, especially for children, that were provided for review and comment by the FIFRA Scientific Advisory Panel (SAP). The Office of Pesticide Programs (OPP), EPA, plans to make significant improvements and changes in its Residential SOPs to assure that its exposure assessment methods are based on the most recent and best science available. As explained in the Background section in the document, OPP previously presented these SOPs to the SAP in September, 1997, as well as other related materials in subsequent SAP meetings. This document does not present a revised version of the 1997 Standard Operating Procedures for Residential Exposure Assessment. Rather, OPP presented the most critical issues for discussion prior to developing a revised SOP document. 

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