Establishments primarily engaged in building and repairing ships, barges, and lighters, whether self-propelled or towed by other craft. This industry also includes the conversion and alteration of ships and the manufacture of off-shore oil and gas well drilling and production platforms (whether or not self-propelled). …
Examples: Barges, building and repairing, Cargo vessels, building and repairing, Combat ships, building and repairing, Crew
