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 This website is no longer updated and links to external websites and some internal pages may not work.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

Guidelines and Criteria for the Search Strategy, Evaluation, Selection, and Documentation of Key Data and Supporting Data Used for the Derivation of AEGL Values

In 2001, the National Academies published procedural guidance or "Standing Operating Procedures" to make development of AEGLs systematic, consistent, documented and transparent to the public. The guidance is in Section 2.3 of the Standing Operationg Procedures link below.

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

Section 2.3 of Standing Operating Procedures (SOP) for Developing Acute Exposure Guidelines (AEGls) for Hazardous Chemicals (PDF)(12 pp, 154 K)