An official website of the United States government.

Pesticide Registration

PRN 2001-4: Elimination of Phenol Resistance Testing for Antimicrobial Disinfectant and Sanitizer Pesticides

This notice announces the discontinuation of phenol resistance testing as a part of efficacy testing for antimicrobial disinfectants and sanitizers. Effective immediately, the Agency will consider registering or reregistering antimicrobial disinfectant or sanitizer pesticides without supporting phenol resistance testing. All other data in support of registration or reregistration, including any required efficacy testing data, must be submitted and then accepted by the Agency. 

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