scope:

This instruction applies to all diving, diver training, and manned hyperbaric systems operations conducted by the U.S. Navy, afloat and ashore including all diving performed by DON civil service employees. Personnel working in the dry environment of sonar domes, medical hyperbaric treatment unrelated to diving, and aircrew personnel undergoing emergency underwater escape training are not addressed by this instruction.

To establish policy and assign responsibilities for the Navy Diving Program and to enhance safety by promoting a clear understanding of diving program policy and a uniform execution of that policy within the Department of the Navy (DON). References (a) and (b) designate the Chief of Naval Operations (CNO), Director, Submarine Warfare Division (N77) as the executive manager for the Joint Service Military Diving Technology and Training (MDT&T) program. Accordingly the policies provided in this instruction apply to all Department of Defense (DoD) components and activities conducting diving operations within the scope of the MDT&T program. Throughout this instruction the term "Navy" applies to all military and civilian DoD diving activities and operations. This instruction is a complete revision and should be reviewed in its entirety.