(a) Section 4 of the Flood Control Act of 1944, as amended (16 U.S.C. 460d).
(b) Section 234 of the River and Harbor and Flood Control Act of 1970 (Pub. L. 91-611, 84 Stat. 1818).
(c) Section 120 of the Water Resource Development Act of 1976 (Pub. L. 94-587, 90 Stat. 2917).
(d) 36 CFR chapter III.
(e) ER 190-2-3.
(f) ER 190-3-4.