Master diver (United States Navy)

A master diver is an enlisted person who typically has the most experience and knowledge on all aspects of diving and underwater salvage.

[citation needed] According to the Manual of Navy Enlisted Manpower and Personnel Classifications and Occupational Standards, the USN master diver is the most qualified enlisted person to direct and supervise diving, salvage, ship repair operations and diving programs.

He directs underwater inspections, harbor, port and ship security inspections, including ordnance searching, ship and submarine repair, salvage, expeditionary salvage and littoral combat, rescue, special warfare operations, underwater cutting and welding, demolition operations and small boat operations.

He develops training programs and qualifies personnel in diving equipment, systems and procedures.

He directs and supervises surface and underwater demolition operations for salvage, ship husbandry, or underwater construction operations and employs the principle and techniques of precision demolition in projects requiring cutting, flattening and/or removing of pilings, obsolete moorings, or other obstructions in channels, harbors, open oceans, or other areas of concern.