United States offshore facility

the term “United States offshore facility” means any offshore facility, fixed or floating, that dynamically holds position or is temporarily or permanently attached to the seabed or subsoil under the territorial sea of the United States or the outer Continental Shelf (as that term is defined in section 2 of the Outer Continental Shelf Lands Act (43 U.S.C. 1331)), including any vessel, rig, platform, or other vehicle or structure subject to regulation under section 30 of the Outer Continental Shelf Lands Act (43 U.S.C. 1356).