California Code, Public Resources Code - PRC § 72400

(a) California is home to four of the 13 national marine sanctuaries. These areas support some of the world's most diverse marine ecosystems and are home to numerous mammals, seabirds, fish, invertebrates, and plants.

(b) The protection and enhancement of the quality of the marine waters of the state and marine sanctuaries, and the protection of public health and the environment, requires that the release from large passenger vessels and oceangoing ships of hazardous waste, other waste, sewage sludge, and oily bilgewater, into the marine waters of the state and marine sanctuaries, and the release of graywater by large passenger ships into the marine waters of the state, should be prohibited.