33 CFR § 321.1 - General.
This regulation prescribes, in addition to the general policies of 33 CFR part 320 and procedures of 33 CFR part 325, those special policies, practices, and procedures to be followed by the Corps of Engineers in connection with the review of applications for Department of the Army (DA) permits to authorize the construction of a dike or dam in a navigable water of the United States pursuant to section 9 of the Rivers and Harbors Act of 1899 (33 U.S.C. 401). See 33 CFR 320.2(a). Dams and dikes in navigable waters of the United States also require DA permits under section 404 of the Clean Water Act, as amended (33 U.S.C. 1344). Applicants for DA permits under this part should also refer to 33 CFR part 323 to satisfy the requirements of section 404.