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EPA/WATER RIN: 2040-AF16 Publication ID: Fall 2011 
Title: Water Quality Standards Regulatory Clarifications 
Abstract: EPA is proposing a targeted set of 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 EPA in the implementation process that will benefit from clarification and greater specificity. The proposed rule will provide clarity in the following six key areas: 1) Administrator's determination, 2) designated uses, 3) triennial review requirements, 4) antidegradation, 5) variances to water quality standards, and 6) compliance schedule authorizing provisions. These clarifications will allow EPA to better achieve program goals by providing enhanced water resource protection and clearer and simplified requirements. 
Agency: Environmental Protection Agency(EPA)  Priority: Other Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 40 CFR 131 (revision)   
Legal Authority: 33 USC 1251 et seq   
Legal Deadline:  None
Timetable:
Action Date FR Cite
Notice of Listening Session  07/30/2010  75 FR 44930   
NPRM  03/00/2012    
Final Action  11/00/2012    
Additional Information: EPA Docket information: EPA-HQ-OW-2010-0606
Regulatory Flexibility Analysis Required: No  Government Levels Affected: State, Tribal 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL: http://epa.gov/waterscience/standards  
RIN Data Printed in the FR: No 
Agency Contact:
Grace Robiou
Environmental Protection Agency
Water
4305T,
Washington, DC 20460
Phone:202 566-2975
Email: robiou.grace@epamail.epa.gov

Christina Christensen
Environmental Protection Agency
Water
4305T,
Washington, DC 20460
Phone:202 566-0537
Email: Christensen.Christina@epamail.epa.gov