Based on title 18, U.S.C., 1940 ed., § 753b, (May 14, 1930, ch. 274, § 3, 46 Stat. 325).

Changes were made in phraseology. The first sentence was incorporated in section 4042 of this title.

1978—Pub. L. 95–624 substituted “Attorney General” for “Director of the Bureau of Prisons”.