A prior section 181, act Aug. 31, 1954, ch. 1158, 68 Stat. 1021, authorizing the Secretary to conduct surveys necessary to furnish current data on subjects covered by the censuses under this title, was repealed by section 8(a) of Pub. L. 94–521. See section 182 of this title.

Section effective Oct. 17, 1976, see section 17 of Pub. L. 94–521, set out as a note under section 1 of this title.