Definitions for "NPDES Permit"
An authorization, license, or equivalent control document issued by EPA or an approved State agency to implement the requirements of the NPDES program.
Under state law, it is officially called a waste discharge requirement. It is required for all point sources discharges of pollutants to surface waters. It has the following characteristics: Issued for up to five years; provides for inspection and monitoring; requires notice to the public, the EPA and any other affected state; provides for the protection of navigation; and mandates a pre-treatment program.
A permit issued under the CWA that regulates direct wastewater discharges of pollutants to receiving waters of the state.