21D: Diver
Major Duties: The diver supervises or performs
underwater reconnaissance, demolition, repair, and salvage.
Duties for MOS 21D at each level of skill are:
- Skill Levels
- Skill Level 1 MOSC 21D1O. Performs
underwater work as directed from topside supervisor
or lead diver. Operates power support equipment, emplaces
demolitions and performs as secondary air systems operator
during diving and recompression chamber operations.
- Skill Level 2 MOSC 21D2O. Performs
as lead diver during underwater work. Prepares patching
materials and pumps for salvage operations. Prepares
explosives for placement. Prepares rigging and lifting
devices for salvageof submerged objects. Assists diving
supervisor in preparing equipment for diving operations.
Performs as primary operator on air systems and underwater
support equipment during diving and recompression chamber
operations.
- Skill Level 3 MOSC 21D3O. Performs
as senior diver and sueprvises diving operations. Directs
preparation and operation of diving equipment and water
craft support platforms. Supervises calculation, training,
and use of explosives. Supervises use of underwater
hydraulic and electric power equipment and other special
underwater tools. Supervises recompression chamber and
life support equipment during diving and emergency operations.
- Skill Level 4 MOSC 021D4O. Performs
as a qualified Master Diver for lightweight diving teams.
Supervises diving operations for dives deeper than 100
feet salt water. Supervises recompression therapy for
diving injuries and coordinates medical support. Prepares
detailed plans and reports for complex diving operations.
Supervises use, training, and safety during demolitions
missions. Assists the team leader during planning, scheduling,
and execution of divingmissions.
- Skill Level 5 MOSC 21D5O. Performs
as a qualified Master Diver for the control and support
diving detachments and responsible for the command and
control of assigned lightweight diving teams. Ensures
all diving operations are conducted safely. Supervises
deep sea diving missions and dives conducted deeper
than 100 feet salt water. Formulates demolition plan
for operational and training missions. Assists the commander
in planning, scheduling and executing training and operational
missions. Provides expertise to staff planners and diving
teams. Writes and develops doctrinal, regulatory, training,
and safety material related to the accomplishment of
diving missions.
Physical demands rating and qualifications for initial
award of MOS. The diver must possess the following qualifications:
(1) Physical Demands Rating:
very heavy
(2) Physical Profile: 111111
(3) Minimum score of 100 in aptitude
area GM and a standard score of 110 or higher in aptitude
area GT or ST.
(4) The medical fitness standards for diver per AR 40-501.
(5) MOSC qualification per AR 611-75 at each level of skill.
(6) The mandatory formal training.
MOS 21D had the alphanumeric designator of 00B prior
to fiscal year 2004.
The major duties, physical demands, physical profile, and
skill levels were obtained from Army Pamphlet 611-21.
MOS List for Corps of Engineers
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