Subject to recognized principles of international law and after consultation with the Secretary of Commerce, the Secretary of the Interior, the Secretary of State, and the Secretary of Defense, the Secretary of the department in which the Coast Guard is operating shall designate a zone of appropriate size around and including any ocean thermal energy conversion facility licensed under this chapter and may designate such a zone around and including any ocean thermal energy conversion plantship licensed under this chapter for the purposes of navigational safety and protection of the facility or plantship. The Secretary of the department in which the Coast Guard is operating shall by regulation define permitted activities within such zone consistent with the purpose for which it was designated. The Secretary of the department in which the Coast Guard is operating shall, not later than 30 days after publication of notice pursuant to section 9112(d) of this title, designate such safety zone with respect to any proposed ocean thermal energy conversion facility or plantship.

In addition to any other regulations, the Secretary of the department in which the Coast Guard is operating is authorized, in accordance with this subsection, to establish a safety zone to be effective during the period of construction of an ocean thermal energy conversion facility or plantship licensed under this chapter, and to issue rules and regulations relating thereto.

Except in a situation involving force majeure, a licensee of an ocean thermal energy conversion facility or plantship shall not permit a vessel, registered in or flying the flag of a foreign state, to call at, load or unload cargo at, or otherwise utilize such a facility or plantship licensed under this chapter unless (A) the foreign state involved has agreed, by specific agreement with the United States, to recognize the jurisdiction of the United States over the vessel and its personnel, in accordance with the provisions of this chapter, while the vessel is located within the safety zone, and (B) the vessel owner or operator has designated an agent in the United States for receipt of service of process in the event of any claim or legal proceeding resulting from activities of the vessel or its personnel while located within such a safety zone.

The Secretary of the department in which the Coast Guard is operating shall promulgate and enforce regulations specified in paragraph (2) of this subsection and such other regulations as he deems necessary concerning the documentation, design, construction, alteration, equipment, maintenance, repair, inspection, certification, and manning of ocean thermal energy conversion facilities and plantships. In addition to other requirements prescribed under those regulations, the Secretary of the department in which the Coast Guard is operating may require compliance with those vessel documentation, inspection, and manning laws which he determines to be appropriate.

For the purposes of the documentation laws, for which compliance is required under paragraph (1) of this subsection, ocean thermal energy conversion facilities and plantships shall be deemed to be vessels and, if documented, vessels of the United States for the purposes of the Ship Mortgage Act, 1920 (46 U.S.C. 911–984).

For the purposes of this subsection the term “ocean thermal energy conversion facility” refers only to an ocean thermal energy conversion facility which has major components other than water intake or discharge pipes located seaward of the highwater mark 1