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Waters of the United States (WOTUS) Rulemaking

Applicability Date to the 2015 Rule

On this page:

Public Comment Periods - Applicability Date

Open Public Comment Periods

There are currently no open public comment periods.

Closed Public Comment Periods

The agencies accepted comment on the proposed rule "Definition of 'Waters of the United States' - Addition of Applicability Date to 2015 Rule" through December 13, 2017. Comments can be found in the docket.


Final Rule: Definition of “Waters of the United States” – Addition of an Applicability Date to 2015 Clean Water Rule

On January 31, 2018, the Environmental Protection Agency and U.S. Department of the Army (the agencies) finalized a rule adding an applicability date to the 2015 Rule defining “waters of the United States.” The final rule was published in the Federal Register on February 6, 2018. Since then, the U.S. District Courts for the District of South Carolina and the Southern District of Washington enjoined and vacated the 2018 Rule. Please visit “Definition of ‘Waters of the United States’: Rule Status and Litigation Update” for updates regarding the status of this final rule. 

The proposed rule published in the Federal Register on November 22, 2017The public comment closed on December 13, 2017. Comments can be found in the docket