Longshore and Harbor Workers' Compensation Act (LHWCA): Overview of Workers' Compensation for Certain Private-Sector Maritime Workers [Updated May 14, 2020] [open pdf - 1MB]
From the Introduction: "The Longshore and Harbor Workers' Compensation Act (LHWCA) requires that private-sector firms provide workers' compensation coverage for their employees engaged in longshore, harbor, or other maritime occupations on or adjacent to the navigable waters of the United States. Although the LHWCA program is administered by the Department of Labor (DOL), most benefits are paid either through private insurers or self-insured firms. The LHWCA is a workers' compensation system and not a federal benefits program. Like other workers' compensation systems in the United States, the LHWCA ensures that all covered workers are provided medical and disability benefits in the event they are injured or become ill in the course of their employment, and it provides benefits to the survivors of covered workers who die on the job. In 2017, the LHWCA paid approximately $2.06 billion in cash and medical benefits to injured workers and the families of deceased workers."
CRS Report for Congress, R41506
Congressional Research Service: https://crsreports.congress.gov/