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EPA/WATER RIN: 2040-AF16 Publication ID: Spring 2015 
Title: Water Quality Standards Regulatory Revisions 

The Environmental Protection Agency (EPA) proposed changes to the water quality standards (WQS) regulation to improve its effectiveness in helping restore and maintain the Nation's waters. The core of the current WQS regulation has been in place since 1983. Since then, a number of issues have been raised by stakeholders or identified by the EPA in the implementation process that will benefit from clarification and greater specificity. The proposed rule addresses the following six key areas: 1) Administrator's determination that new or revised WQS are necessary, 2) designated uses, 3) triennial review requirements, 4) antidegradation, 5) variances to water quality standards, and 6) compliance schedule authorizing provisions. These revisions will allow the EPA, States and authorized tribes to better achieve program goals by providing clearer more streamlined requirements to facilitate enhanced water resource protection.

Agency: Environmental Protection Agency(EPA)  Priority: Other Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Final Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 40 CFR 131 (revision)   
Legal Authority: 33 U.S.C. 1251 et seq Clean Water Act   
Legal Deadline:  None
Action Date FR Cite
Notice  07/30/2010  75 FR 44930   
NPRM  09/04/2013  78 FR 54517   
NPRM Comment Period Extended  11/27/2013  78 FR 70905   
Final Rule  06/00/2015 
Additional Information: Docket #:EPA-HQ-OW-2010-0606
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Federal, State, Tribal 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL:  
RIN Data Printed in the FR: No 
Agency Contact:
Grace Robiou
Environmental Protection Agency
Washington, DC 20460
Phone:202 566-2975

Janita Aguirre
Environmental Protection Agency
Mail Code 4305T, 1200 Pennsylvania Ave. NW.,
Washington, DC 20460
Phone:202 566-1149
Fax:202 566-0409