37 U.S.C. § 312: Special pay: nuclear-qualified officers extending period of active service

is entitled to basic pay; has the current technical qualification for duty in connection with supervision, operation, and maintenance of naval nuclear propulsion plants; and executes a written agreement to remain on active duty in connection with supervision, operation, and maintenance of naval nuclear propulsion plants for a period of not less than three years, so long as the new period of obligated active service does not extend beyond the end of 30 years of commissioned service, in addition to any other period of obligated active service. The total amount paid to an officer under an agreement under subsection (a) or (e)(1) may not exceed $30,000 for each year of the active-service agreement. Amounts paid under the agreement are in addition to all other compensation to which the officer is entitled. The Secretary shall determine annually the necessity for continuance of the special pay and the rate of special pay per year for such active-service agreements accepted within each 12-month period. Upon acceptance of an agreement under subsection (a) or (e)(1) by the Secretary, the total amount payable shall be paid in a single lump-sum or in annual installments of equal or different amounts over the length of the contract, commencing at the expiration of any existing period of obligated active service. The Secretary may accept an active service agreement under this section not more than one year in advance of the end of an officer’s existing period of obligated active service under such an agreement. In such a case, the amount of the special pay may be paid commencing with the date of acceptance of the agreement, and, if the special pay will be paid in annual installments, the number of installments may not exceed the number of years covered by the agreement plus one. An officer who does not complete the period of active duty in connection with the supervision, operation, and maintenance of naval nuclear propulsion plants that the officer agreed to serve, and for which a payment was made under subsection (b) or (e)(1), shall be subject to the repayment provisions of section 303a(e) of this title . Nothing in this section shall alter or modify the obligation of a regular officer to perform active service at the pleasure of the President. Completion of the additional period of active service under this section shall in no way obligate the President to accept a resignation submitted by a regular officer. An officer who is performing obligated service under an agreement under subsection (a) may, if the amount that may be paid under subsection (b) is higher than at the time the officer executed such agreement, execute a new agreement under this subsection. The period of such an agreement shall be a period equal to or exceeding the original period of the officer’s existing agreement, so long as the period of obligated active service under the new agreement does not extend beyond the maximum number of years of commissioned service authorized by subsection (a)(3). If a new agreement is executed under this subsection, the existing active-service agreement shall be cancelled, effective on the day before an anniversary date of that agreement after the date on which the amount that may be paid under this section is increased. This subsection shall be carried out under regulations prescribed by the Secretary of the Navy. The provisions of this section shall be effective only in the case of officers who, on or before December 31, 2018 , execute the required written agreement to remain in active service. The amendments made by this section [amending this section and sections 312b and 312c of this title] shall take effect as of October 1, 1997 . The amendments made by subsections (a) and (b) [amending this section and section 312b of this title ] shall apply with respect to agreements accepted under sections 312(a) and 312b(a), respectively, of title 37, United States Code, on or after October 1, 1997 .” as of the last day of the first year of that obligated service, to cancel that active service agreement in exchange for a new active service agreement in accordance with section 312 of title 37 , as amended by this Act; or as of the last day of any year, other than the last year, of that obligated service, to cancel that active service agreement in exchange for eligibility for the annual bonus authorized by section 312c of title 37 , as added by this Act, and an agreement to remain on active duty for a period of time equal to the period of obligated service remaining under that active service agreement.”