A prior section
4021, act Aug. 10, 1956, ch. 1041, 70A Stat. 233, related to appointments in professional and scientific service, prior to repeal by
Pub. L. 85–861, § 36B(11), Sept. 2, 1958,
72 Stat. 1570.
2001—Subsec. (c)(1).
Pub. L. 107–107 substituted “November 29, 1989” for “the date of the enactment of this section”.