Federal OSHA has jurisdiction over most maritime activity. The following links are to the Federal OSHA website.
29 CFR, 1915 - Occupational Safety and Health Standards for Shipyard Employment
29 CFR, 1917 - Marine Terminals
29 CFR, 1918 - Safety and Health Regulations for Longshoring
Division 5, Maritime Activities
437-005-0001
Administrative Order 3-2019
PDF or Word