offshore facility
(22) “offshore facility” means any facility of any kind located in, on, or under any of the navigable waters of the United States, and any facility of any kind which is subject to the jurisdiction of the United States and is located in, on, or under any other waters, other than a vessel or a public vessel;
Source
33 USC § 2701(22)
Scoping language
None identified, default scope is assumed to be the parent (subchapter I) of this section.