33 U.S.C. § 1401
PURPOSE.
“The purpose of this title is to:“(1) Ensure that cruise vessels operating in the waters of the Alexander Archipelago and the navigable waters of the United States within the State of Alaska and within the Kachemak Bay National Estuarine Research Reserve comply with all applicable environmental laws, including, but not limited to, the Federal Water Pollution Control Act, as amended (33 U.S.C. 1251 et seq.), the Act to Prevent Pollution from Ships, as amended (33 U.S.C. 1901 et seq.), and the protections contained within this title.“(2) Ensure that cruise vessels do not discharge untreated sewage within the waters of the Alexander Archipelago, the navigable waters of the United States in the State of Alaska, or within the Kachemak Bay National Estuarine Research Reserve.“(3) Prevent the unregulated discharge of treated sewage and graywater while in ports in the State of Alaska or traveling near the shore in the Alexander Archipelago and the navigable waters of the United States in the State of Alaska or within the Kachemak Bay National Estuarine Research Reserve.“(4) Ensure that discharges of sewage and graywater from cruise vessels operating in the Alexander Archipelago and the navigable waters of the United States in the State of Alaska or within the Kachemak Bay National Estuarine Research Reserve can be monitored for compliance with the requirements contained in this title.