Methods Update Rule - 2019
revised EPA methods;
new or revised methods published by voluntary consensus standard bodies, such as ASTM International and the Standard Methods Committee;
new or updated methods developed by the U.S. Geological Survey;
methods reviewed under the Alternate Test Procedures program; and
minor changes to quality assurance and quality control within individual methods.
For further information on the proposed rule, please contact Meghan Hessenauer, firstname.lastname@example.org or 202-566-1040.