13-10 Change A U.S. Navy Diving Manual—Volume 3 Table 13-4.  Surface Supplied Mixed Gas Dive Team Deep-Sea (MK 21, EXO BR MS) Designation One Diver Two Divers Diving Officer 1 (Note 1) 1 (Note 1) Diving Medical Officer 1 (Notes 1 and 4) 1 (Notes 1 and 4) Diving Supervisor/Master Diver 1 (Notes 1 and 5) 1 (Notes 1 and 5) Diving Medical Technician 1 (Notes 1 and 6) 1 (Notes 1 and 6) Diver 1 (Note 2) 2 (Note 2) Standby Diver 1 (Note 2) 1 (Note 2) Tender 3 (Note 2) 5 (Note 2) Timekeeper/Recorder 1 (Note 2) 1 (Note 2) Rack Operator 1 (Note 2) 1 (Note 2) Winch Operator 1 (Note 3) 1 (Note 3) Console Operator 1 (Note 2) 1 (Note 2) Total Personnel Required 12 15 Notes: 1. To ensure sufficient properly trained and qualified individuals are assigned to the most critical positions on a surface supplied mixed gas dive station, the following minimum stations shall be manned by formally trained (NDSTC) mixed gas divers: Diving Officer Diving Medical Officer Master Diver Diving Supervisor Diving Medical Technician 2. The following stations shall be manned by formally trained (NDSTC) surface supplied divers: Diver Standby Diver Rack Operator Console Operator         Timekeeper/Recorder 3. The following stations should be a qualified diver.  When circumstances require the use of a non-diver, the Diving Offic- er, Master Diver, and Diving Supervisor must ensure that the required personnel has been thoroughly instructed in the    required duties.  These stations include: Tender Standby Tender Winch Operator 4. A Diving Medical Officer is required on site for all dives exceeding the normal working limit. 5. Master Diver may serve as the Diving Officer if so designated in writing by the Commanding Officer. 6. Diving Medical Technician required when no Diving Medical Officer is available.