Pretreatment Roles and Responsibilities
These three entities have the role and responsibility to develop and implement the national pretreatment program:
- Approval authorities
		
- Director in an NPDES authorized state with an approved state pretreatment program, and the appropriate EPA regional administrator in a non-NPDES authorized state or NPDES state without an approved state pretreatment program.
 
 - Control authorities
		
- The publicly owned treatment works (POTW), for a POTW with an approved pretreatment program, or the approval authority, for a POTW without an approved pretreatment program.
 
 - Industrial users (IUs)
		
- A nondomestic source of indirect discharge into a POTW.