I am sure there are probably some exceptions but who would more than likely have Jurisdiction over injury on a ship in Dry Dock?
This website appears to provide an answer to your question although it is not legal authority: http://www.isr-insurance.com/acts.html
“The Longshore Harbor Worker's Compensation Act, more commonly referred to as USL&H, is a federal act which provides employee benefits similar to State Act Workers Compensation to an employee engaged in maritime employment if any injury or death occurs upon 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.
State Act Workers Compensation programs do not cover these types of employees and jurisdiction for USL&H falls under the United States Department of Labor. Compared to State Act programs, USL&H claims are subject to a more generous benefits schedule, compressed reporting schedules and increased penalties and fines for noncompliance. “
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Workers' Compensation Lawyer
Best question I've seen posted on avvo in a long time....I have no idea what the answer it but i suspect it is USL&H. There are several attorneys in the Long Beach area that handle both CA w.c. and USL&H. Call one of them and they should know the answer. Sorry i can't give more help.