33 U.S.C. § 2503 - U.S. Code - Unannotated Title 33. Navigation and Navigable Waters § 2503. Prohibition

(1)(A) the health or safety of individuals on board the vessel is threatened; or

(B) during time of war or a declared national emergency;

(3)(A) in the case of a public vessel which is not a submersible, the waste is sterilized, properly packaged, and sufficiently weighted to prevent the waste from coming ashore after disposal; and

(B) in the case of a public vessel which is a submersible, the waste is properly packaged and sufficiently weighted to prevent the waste from coming ashore after disposal.