What is the primary responsibility of the Dive Supervisor during a surface-supplied diving operation?

• A. Plan, authorize, and supervise the dive, ensure compliance with procedures, maintain diver safety, coordinate the crew, and respond to emergencies.
• B. Maintain the dive log and scheduling.
• C. Conduct post-dive debriefing only.
• D. Operate the surface vessel navigation.

Answer: (A)

The Dive Supervisor’s primary duty in a surface-supplied diving operation is to take overall command of the dive: plan, authorize, and supervise the dive, ensure procedures are followed, keep divers safe, coordinate the crew, and respond to emergencies. This means they actively oversee the entire operation from the moment the plan is written, checking gas supplies, buddy and standby arrangements, lift and lowering procedures, and communications protocols. They verify that depth, time limits, and contingency plans are understood, and they maintain a constant focus on diver safety, readiness to abort if conditions deteriorate, and effective coordination with the tender, safety divers, and other surface personnel. The supervisor also preserves authority to stop the dive if safety concerns arise and ensures that emergency procedures are clear and ready to implement.

Other tasks like logging and scheduling, while important for record-keeping and planning, do not capture the full scope of leadership and proactive safety management required during the dive itself. Post-dive debriefing is valuable but happens after the operation, not during it. Operating the surface vessel’s navigation is a distinct responsibility tied to the vessel crew, not the Dive Supervisor’s primary role in directing the dive.