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Criteria: Awarded to United States Army soldiers holding the rank of sergeant first class or master sergeant, who, additionally, are awarded and retain the military occupational specialty 21D40 and 21D50, complete the Advanced Non-Commissioned Officers’ course (ANCOC) for military occupation specialty 21D within two years of promotion to sergeant first class, maintain current basic life support cardiovascular pulmonary resuscitation (CPR) qualifications according to American Red Cross or American Heart Association standards, meet Army Physical Fitness Test standards and minimum standards of the Diver Physical Fitness Test, conduct DPFT as frequently as APFT, and maintain current qualification dive status in accordance with Army standards. The award was created on February 15, 1944. Other Army Diver Badges include the Salvage, Second Class, First Class, and Special Operations Diver Badges. The Master Diver Badge includes the Diver Badge First Class’s design but adds the trident – symbolic of a marine spearhead, standing for valor and strength.