OSHA Jurisdiction
OSHA has safety and health coverage over working conditions of employees on vessels and facilities on or adjacent to U.S. navigable waters and the Outer Continental Shelf.

Navigable Waters of the United States (U.S. navigable waters) includes State territorial seas and U.S. inland waters (i.e., all rivers, tributaries, lakes, bays, and sounds shoreward of the territorial sea baseline) that:
- are subject to tidal influence, or
- are or have been used for interstate or foreign commerce [33 CFR Part 2].
The U.S. Coast Guard is the agency responsible for making any determination of whether a body of water is considered to be U.S. navigable waters.
Where are the Outer Continental Shelf (OCS) Lands?
The Outer Continental Shelf (OCS) Lands are considered to be:
- the submerged subsoil and seabed lying seaward and outside of the lands beneath navigable waters of the United States (U.S. inland waters, and State territorial seas) subject to the jurisdiction of the United States
- all artificial islands, and all installations and other devices permanently or temporarily attached to the seabed, which may be erected thereon to explore for, develop, or produce resources therefrom, or any installation or other device (other than a ship or vessel) to transport such resources
Knowledge Check Choose the best answer for the question.
1-2. OSHA has safety and health coverage over working conditions of employees on vessels and facilities on or adjacent to _____.
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