According to people in this career, the main tasks are...
| Task | Importance |
|---|---|
| Take appropriate safety precautions, such as monitoring dive lengths and depths and registering with authorities before diving expeditions begin. | 96% |
| Check and maintain diving equipment, such as helmets, masks, air tanks, harnesses, or gauges. | 94% |
| Communicate with workers on the surface while underwater, using signal lines or telephones. | 92% |
| Descend into water with the aid of diver helpers, using scuba gear or diving suits. | 84% |
| Obtain information about diving tasks and environmental conditions. | 83% |
| Supervise or train other divers, including hobby divers. | 83% |
| Inspect the condition of underwater steel or wood structures. | 80% |
| Inspect and test docks, ships, buoyage systems, plant intakes or outflows, or underwater pipelines, cables, or sewers, using closed circuit television, still photography, and testing equipment. | 80% |
| Repair ships, bridge foundations, or other structures below the water line, using caulk, bolts, and hand tools. | 79% |
| Recover objects by placing rigging around sunken objects, hooking rigging to crane lines, and operating winches, derricks, or cranes to raise objects. | 77% |
| Operate underwater video, sonar, recording, or related equipment to investigate underwater structures or marine life. | 77% |
| Take test samples or photographs to assess the condition of vessels or structures. | 76% |
| Cut and weld steel, using underwater welding equipment, jigs, and supports. | 74% |
| Install, inspect, clean, or repair piping or valves. | 74% |
| Carry out non-destructive testing, such as tests for cracks on the legs of oil rigs at sea. | 73% |
| Install pilings or footings for piers or bridges. | 72% |
| Salvage wrecked ships or their cargo, using pneumatic power velocity and hydraulic tools and explosive charges, when necessary. | 72% |
| Perform offshore oil or gas exploration or extraction duties, such as conducting underwater surveys or repairing and maintaining drilling rigs or platforms. | 71% |
| Remove obstructions from strainers or marine railway or launching ways, using pneumatic or power hand tools. | 70% |
| Set or guide placement of pilings or sandbags to provide support for structures, such as docks, bridges, cofferdams, or platforms. | 70% |
| Perform activities related to underwater search and rescue, salvage, recovery, or cleanup operations. | 69% |
| Drill holes in rock and rig explosives for underwater demolitions. | 65% |
| Remove rubbish or pollution from the sea. | 65% |
| Set up dive sites for recreational instruction. | 62% |
| Cultivate or harvest marine species or perform routine work on fish farms. | 47% |
