37 U.S.C. § 304

(a) Under regulations prescribed by the Secretary concerned, a member of a uniformed service who is entitled to basic pay is entitled to special pay, in the amount set forth in subsection (b), for periods during which the member— (1) is assigned by orders to the duty of diving; (2) is required to maintain proficiency as a diver by frequent and regular dives; and (3) either— (A) actually performs diving duty while serving in an assignment for which diving is a primary duty; or (B) meets the requirements to maintain proficiency as described in paragraph (2) while serving in an assignment that includes diving duty other than as a primary duty. (b) Special pay payable under subsection (a) shall be paid at a rate of not more than $240 a month, in the case of an officer, and at a rate of not more than $340 a month, in the case of an enlisted member. (c) If, in addition to diving duty, a member is assigned by orders to one or more hazardous duties described in section 301 of this title , the member may be paid, for the same period of service, special pay under this section and incentive pay under such section 301 for each hazardous duty for which the member is qualified. (d) (1) Under regulations prescribed by the Secretary concerned and to the extent provided for by appropriations, when a member of the National Guard or a reserve component of a uniformed service who is entitled to compensation under section 206 of this title performs diving duty, pursuant to orders, such member is entitled to an increase in compensation equal to 1 ⁄ 30 of the monthly special pay prescribed by the Secretary concerned for the performance of diving duty by a member of comparable diving classification who is entitled to basic pay under section 204 of this title . Such member is entitled to the increase— (A) for each regular period of instruction, or period of appropriate duty, at which the member is engaged for at least two hours, including that performed on a Sunday or holiday; or (B) for the performance of such other equivalent training, instruction, duty, or appropriate duties, as the Secretary may prescribe under section 206(a) of this title . (2) This subsection does not apply to a member who is entitled to basic pay under section 204 of this title . (e) In time of war, the President may suspend the payment of diving duty pay.