((a)) ** .—** Under regulations prescribed by the Secretary concerned, a person who executes a written agreement to accept a commission or an appointment as an officer of the armed forces and serve on active duty in a designated critical officer skill for the period specified in the agreement may, upon acceptance of the agreement by the Secretary concerned, be paid an accession bonus in an amount determined by the Secretary concerned.
((b)) ** .—** The Secretary concerned shall designate the critical officer skills for the purposes of this section. A skill may be designated as a critical officer skill for an armed force under this subsection if—
((1)) in order to meet requirements of the armed force, it is critical for the armed force to have a sufficient number of officers who are qualified in that skill; and
((2)) in order to mitigate a current or projected significant shortage of personnel in the armed force who are qualified in that skill, it is critical to access into that armed force in sufficient numbers persons who are qualified in that skill or are to be trained in that skill.
((c)) ** .—** The amount of an accession bonus under subsection (a) may not exceed $60,000.
((d)) ** .—** Upon acceptance of a written agreement under subsection (a) by the Secretary concerned, the total amount of the accession bonus payable under the agreement becomes fixed. The agreement shall specify whether the accession bonus will be paid by the Secretary in a lump sum or installments.
((e)) ** .—** An individual may not receive an accession bonus under this section and section 302d, 302h, 302j, or 312b of this title for the same period of service.
((f)) ** .—** An individual who, having received all or part of the bonus under an agreement referred to in subsection (a), is not thereafter commissioned as an officer or does not commence or complete the total period of active duty service specified in the agreement shall be subject to the repayment provisions of .
((g)) ** .—** No agreement under this section may be entered into after .