2006—Subsec. (c). Pub. L. 109–163 amended subsec. (c) generally, substituting provisions referring to repayment provisions of section 303a(e) for specific provisions relating to refunds required when officer receives bonus but fails to complete agreed upon period of active duty.

1991—Subsec. (c). Pub. L. 102–25 struck out “of this section” after “subsection (b)” in two places in par. (1) and struck out “of this subsection” after “paragraph (1)” in pars. (2) to (4) and after “paragraph (3)” in par. (2).

1987—Subsec. (a). Pub. L. 100–26 inserted “the term” after “In this section,”.

1985—Subsec. (a). Pub. L. 99–145, § 637(a)(1), amended subsec. (a) generally. Prior to amendment, subsec. (a) read as follows: “In this section, the term ‘engineering or scientific duty’ means service performed by an officer that requires an engineering or science degree and that requires a skill designated under regulations prescribed by the Secretary of Defense as critical and as a skill in which there is a critical shortage of officers in the armed force concerned.”

Subsec. (b). Pub. L. 99–145, § 637(a)(2), in provision preceding par. (1), substituted “prescribed by the Secretary concerned” for “prescribed by the Secretary of Defense” and “officer of a uniformed service” for “officer of an armed force”.

Pub. L. 99–145, title VI, § 637(b), Nov. 8, 1985, 99 Stat. 649, provided that: “The amendments made by subsection (a) [amending this section] shall take effect on October 1, 1985.”

For savings provision relating to payment or repayment of any bonus, incentive pay, special pay, or similar pay obligated to be paid before Apr. 1, 2006, under a provision of this section amended by section 687(b) of Pub. L. 109–163, see section 687(f) of Pub. L. 109–163, set out as a note under section 510 of Title 10, Armed Forces.