Discharge of Oil Prohibited. [33 CFR 155.450, 33 CFR 151.15(d) and 33 CFR 153.202. Details comply with the revised USCG requirements.] The federal water Pollution Act prohibits the discharge of oil or oily waste into the navigable waters of the United States, or the waters of the contiguous zone, or which may affect natural resources belonging to appertaining to, or under the exclusive management authority of the United States. If such discharge causes a film or discoloration of thesurface of the water or causes a sludge or emulation beneath the surface of the water. Violators are subject to substantial civil penalties and/or criminal sanctions including fines and imprisonment.