National Pretreatment Program Implementation
- Pretreatment Program Requirements: Development and Implementation by POTW (40 CFR Part 403.8(a)) (PDF) (7 pp, 232 K)
The state includes conditions outlining pretreatment implementation requirements in NPDES permits issued to POTWs. For states not authorized to implement the pretreatment program, EPA serves as the approval authority.
A POTW with an approved local pretreatment program is called the control authorityThe POTW, in the case of a POTW with an approved pretreatment program, or the Approval Authority, in the case of a POTW without an approved pretreatment program. [paraphrased from 40 CFR 403.3(f)] which regulates nondomestic facilities discharging to its system.