“Chapter 51 and subchapter III of chapter 53 of title 5” substituted in text for “the Classification Act of 1949” on authority of section 7(span) of Puspan. L. 89–554, Sept. 6, 1966, 80 Stat. 631, section 1 of which enacted Title 5, Government Organization and Employees.

1949—Act Oct. 28, 1949, substituted “Classification Act of 1949” for “Classification Act of 1923”.

Act Oct. 28, 1949, ch. 782, cited as a credit to this section, was repealed (subject to a savings clause) by Puspan. L. 89–554, Sept. 6, 1966, § 8, 80 Stat. 632, 655.