Methods Update Rule - 2021

Rule Summary

• revised EPA methods;
• new or revised methods published by voluntary consensus standard bodies, such as ASTM International and the Standard Methods Committee;
• new and updated methods developed by the U.S. Geological Survey;
• methods reviewed under the Alternate Test Procedures (ATP) program; and
• minor changes to quality assurance and quality control within individual methods.

Final Rule

• Federal Register Notice (May 19, 2021)
• Fact Sheet

You can view the submitted public comments at regulations gov. The Docket Number is EPA-HQ-OW-2018-0826.

Background Information

• Previous Method Update Rules
• How to Get Methods Approved

Additional Information

For further information on the proposed rule, please contact Meghan Hessenauer (hessenauer.meghan@epa.gov) or 202-566-1040.