Wage and Hour Division (WHD)
Service Contract Act Directory of Occupations
Works below surface of water, using scuba gear (self-contained underwater breathing apparatus) or in diving suit with airline extending to surface to inspect, repair, remove, and install equipment and structures. Descends into water with aid of Diver Helper, and communicates with surface by signal line or telephone. Inspects docks, and bottoms and propellers of ships. Repairs vessels below waterline, replacing missing or leaking rivets with bolts. Calks leaks in ships or caissons. Guides placement of pilings for structures, such as docks, bridges, cofferdams, and oil drilling platforms. Lays, inspects, and repairs underwater pipelines, cables, and sewers, using hand tools. Cuts and welds steel, using oxyacetylene cutting torch and arc-welding equipment, utilizing air balloon device for working underwater. Cleans debris from intake and discharge strainers. Removes obstructions from marine railway or launching ways with pneumatic and power hand tools. Places rigging around sunken objects and hooks rigging to crane lines. Rigs explosives for underwater demolitions. Searches for lost, missing, or sunken objects, such as bodies, torpedoes, sunken vessels, and equipment. Places recording instruments below surface of water preparatory to underwater tests or experiments. May set sheet pilings for cofferdams. May drill holes in rock for blasting purposes at bottom of lake or harbor. May work in flooded mines. May use armored diving equipment for dangerous missions. May photograph underwater structures or marine life. May place sandbags around pipelines or base of cofferdam to provide structural support.