This subchapter prescribes regulations for the licensing, construction, design, equipment, and operation of deepwater ports under the Deepwater Port Act of 1974, as amended (codified at 33 U.S.C. 1501 et seq.) (the Act). The regulations in this subchapter (parts 148 through 150) have preemptive effect over state or local regulations in the same field."
33 C.F.R. §148.1