In subsection (a), section 253(h) (provisos) of existing title 37 is omitted, since the regulations to which reference is made have been issued. The exceptions to sections 404 (c) and 406 (g) are inserted, since the source text for those subsections require regulations prescribed thereunder to be uniform.

In subsections (c) and (d), the words “for the purposes of the sections of this title designated by subsection (a) of this section” are inserted to clarify the coverage of the source statute.

1991—Subsecs. (b) to (d). Pub. L. 102–25 struck out “of this section” after “subsection (a)”.

1981—Subsec. (a). Pub. L. 97–60 inserted reference to section 404a.

1980—Subsec. (b)(1). Pub. L. 96–343, § 5(b)(1), substituted “common carrier transportation” for “first-class transportation, including sleeping accommodations,”.

Subsec. (b)(2). Pub. L. 96–343, § 5(b)(2), inserted “and designating areas as high cost areas” after “rates”.

Subsec. (b)(3). Pub. L. 96–343, § 5(b)(3), substituted “transportation” for “first-class transportation, including sleeping accommodations” and “allowances” for “rates”.

Subsec. (d). Pub. L. 96–513 substituted “term” for “words”.

1965—Subsec. (a). Pub. L. 89–26 inserted reference to section 405a.

Amendment by Pub. L. 97–60 effective Apr. 1, 1982, see section 122(c) of Pub. L. 97–60, set out as an Effective Date note under section 404a of this title.

Amendment by Pub. L. 96–513 effective Dec. 12, 1980, see section 701(b)(3) of Pub. L. 96–513, set out as a note under section 101 of Title 10, Armed Forces.

Amendment by Pub. L. 96–343 effective with respect to travel and transportation performed after Aug. 31, 1980, see section 5(c) of Pub. L. 96–343, set out as a note under section 404 of this title.

Amendment by Pub. L. 89–26 effective Feb. 1, 1965, see section 2 of Pub. L. 89–26, as amended, set out as an Effective Date note under section 405a of this title.