Based on title 13, U.S.C., 1952 ed., §§ 72, 72a (Apr. 2, 1924, ch. 80, § 2, 43 Stat. 31; June 18, 1929, ch. 28, § 21, 46 Stat. 26; June 27, 1930, ch. 639, 46 Stat. 821; June 28, 1949, ch. 256, § 1, 63 Stat. 278).

Section consolidates sections 72 and 72a of title 13, U.S.C., 1952 ed.

“Secretary” was substituted for “Director of the Census” to conform with 1950 Reorganization Plan No. 5, §§ 1, 2, effective May 24, 1950, 15 F.R. 3174, 64 Stat. 1263. See Revision Note to section 4 of this title.

Changes were made in phraseology and arrangement.

1972—Subsec. (a). Pub. L. 92–331 substituted “September 1, September 15, October 1, October 15, November 1, November 15, December 1, December 15, January 1, January 15, February 1,” for “August 16, September 1, September 16, October 1, October 18, November 1, November 14, December 1, December 13, January 16,” and “September 1” for “August 16”.