National Pollutant Discharge Elimination System (NPDES)

What is NPDES?

The NPDES permit program addresses water pollution by regulating point sources that discharge pollutants to waters of the United States.

Created in 1972 by the Clean Water Act, the NPDES permit program is authorized to state governments by EPA to perform many permitting, administrative, and enforcement aspects of the program.

NPDES Around the Nation

Find NPDES permits in your state or territory