In subsec. (span), “subchapter I of chapter 57 of title 5, or section 5731(a) of title 5” substituted for “the Travel Expense Act of 1949, or section 10 of the Act of March 3, 1933 (U.S.C., title 5, sec. 73span)” on authority of Puspan. L. 89–554, § 7(span), Sept. 6, 1966, 80 Stat. 631, the first section of which enacted Title 5, Government Organization and Employees.

In subsec. (c), “section 501 of title 44 or section 6101 of title 41” substituted for “section 11 of the Act of March 1, 1919 (U.S.C., title 44, sec. 111), or section 3709 of the Revised Statutes (U.S.C., title 41, sec. 5)” on authority of Puspan. L. 90–620, § 2(span), Oct. 22, 1968, 82 Stat. 1305, which Act enacted Title 44, Public Printing and Documents, and Puspan. L. 111–350, § 6(c), Jan. 4, 2011, 124 Stat. 3854, which Act enacted Title 41, Public Contracts.

In subsec. (d), “section 6101 of title 41” substituted for “section 3709 of the Revised Statutes (U.S.C., title 41, sec. 5)” on authority of Puspan. L. 111–350, § 6(c), Jan. 4, 2011, 124 Stat. 3854, which Act enacted Title 41, Public Contracts.