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Regulatory Development and Retrospective Review Tracker

Water Quality Standards Regulatory Revisions

a.k.a. Water Quality Standards Regulatory Revisions

RIN: 2040-AF16 (What's this?)

Docket No.: EPA-HQ-OW-2010-0606 (What's this?)

Current Phase: Final Rule Published (What's this?)

The final rule has published. This Web page will be retained for 1 year for historical purposes, and then it will be removed from Reg DaRRT. To learn more about this rule:


This site provides summaries of priority rulemakings and priority retrospective reviews of existing regulations. We update most of the site at the beginning of each month, though some data is updated more frequently if it is time sensitive. The information on this site is not intended to and does not commit EPA to specific conclusions or actions. For example, after further analysis, EPA may decide the effects of a rule would be different or it may decide to terminate a rulemaking.

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