40 C.F.R. § 233.2
The definitions in parts 230 and 232 as well as the following definitions apply to this part.
Act means the Clean Water Act (33 U.S.C. 1251 et seq.).
Corps means the U.S. Army Corps of Engineers.
Federal Indian reservation means all land within the limits of any Indian reservation under the jurisdiction of the United States Government, notwithstanding the issuance of any patent, and including rights-of-way running through the reservation.
FWS means the U.S. Fish and Wildlife Service.
Indian Tribe means any Indian Tribe, band, group, or community recognized by the Secretary of the Interior and exercising governmental authority over a Federal Indian reservation.
Interstate agency means an agency of two or more States established by or under an agreement or compact approved by the Congress, or any other agency of two or more States having substantial powers or duties pertaining to the control of pollution.
NMFS means the National Marine Fisheries Service.
State means any of the 50 States, the District of Columbia, Guam, the Commonwealth of Puerto Rico, the Virgin Islands, American Samoa, the Commonwealth of the Northern Mariana Islands, the Trust Territory of the Pacific Islands, or an Indian Tribe, as defined in this part, which meet the requirements of § 233.60 . For purposes of this part, the word State also includes any interstate agency requesting program approval or administering an approved program.
State Director (Director) means the chief administrative officer of any State or interstate agency operating an approved program, or the delegated representative of the Director. If responsibility is divided among two or more State or interstate agencies, Director means the chief administrative officer of the State or interstate agency authorized to perform the particular procedure or function to which reference is made.
State 404 program or State program means a State program which has been approved by EPA under section 404 of the Act to regulate the discharge of dredged or fill material into certain waters as defined in § 232.2(p) .
40 C.F.R. §233.2