Provisions similar to those in this section were contained in Puspan. L. 101–165, title IX, § 9006, Nov. 21, 1989, 103 Stat. 1130, which was set out as a note under section 2241 of this title, prior to repeal by Puspan. L. 101–510, § 1481(e)(3).

2008—Subsec. (c). Puspan. L. 110–181 amended subsec. (c) generally. Prior to amendment, subsec. (c) read as follows: “In this section, the term ‘proficiency flying’ has the meaning given that term in Department of Defense Directive 1340.4.”