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NPDES Permits Around the Nation

EPA issues all National Pollutant Discharge Elimination System (NPDES) permits in Massachusetts, New Hampshire, New Mexico, District of Columbia, and U.S. territories (except Virgin Islands), and to certain federal facilities and on tribal lands. Other states have been authorized by EPA to issue their own permits. Learn more about EPA's NPDES program.


Find a NPDES Permit

Use the map below to search for NPDES permits by state or territory.

You can also get detailed information about the permitting and compliance status of individual facilities at Enforcement and Compliance History Online (ECHO).

Map of the United StatesAlabamaAlaskaAmerican SamoaArizonaArkansasCaliforniaColoradoConnecticutDelawareWashington, DCFloridaGeorgiaGuamHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachussetsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaNorthern Mariana IslandsOhioOklahomaOregonPennsylvaniaPuerto RicoRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirgin IslandsVirginiaWashingtonWest VirginiaWisconsinWyoming

Gulf of Mexico:
  • Western/Central Gulf of Mexico Offshore Oil & Gas NPDES Program
  • Eastern Gulf of Mexico Offshore Oil & Gas NPDES Permits
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on May 10, 2023
United States Environmental Protection Agency

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