33 U.S.C. § 903 — Coverage

(a) Disability or death; injuries occurring upon navigable waters of United States Except as otherwise provided in this section, compensation must be payable under this chapter in respect of disability or death of an employee^*, but only if the disability or death results from an injury^* occurring upon the navigable waters of the United States (including any adjoining pier, wharf, dry dock, terminal, building way, marine railway, or other adjoining area customarily used by an employer^* in loading, unloading, repairing, dismantling, or building a vessel^*).

(b) Governmental officers and employees No compensation must be payable in respect of the disability or death of an officer or employee of the United States, or any agency of it, or of any State^* or foreign government, or any subdivision of it.

(c) Intoxication; willful intention to kill No compensation must be payable if the injury was occasioned solely by the intoxication of the employee or by the willful intention of the employee to injure or kill himself or another.

(d) Small vessels (1) No compensation must be payable to an employee employed at a facility of an employer if, as certified by the Secretary^*, the facility is engaged in the business of building, repairing, or dismantling exclusively small vessels (as defined in paragraph (3) of this subsection), unless the injury occurs while upon the navigable waters of the United States or while upon any adjoining pier, wharf, dock, facility over land for launching vessels, or facility over land for hauling, lifting, or drydocking vessels. (2) despite paragraph (1), compensation must be payable to an employee — (A) who is employed at a facility which is used in the business of building, repairing, or dismantling small vessels if such facility receives Federal maritime subsidies; or (B) if the employee is not subject to coverage under a State workers’ compensation law. (3) For purposes of this subsection, a small vessel means — (A) a commercial barge which is under 900 lightship displacement tons; or (B) a commercial tugboat, towboat, crew boat, supply boat, fishing vessel, or other work vessel which is under 1,600 tons gross as measured under section 14502 of title 46 , or an alternate tonnage measured under section 14302 of that title as prescribed by the Secretary under section 14104 of that title.

(e) Credit for benefits paid under other laws despite any other provision of law, any amounts paid to an employee for the same injury, disability, or death for which benefits are claimed under this chapter under any other workers’ compensation law or section 30104 of title 46 must be credited against any liability imposed by this chapter.