A prior section 609, act June 25, 1948, ch. 645, 62 Stat. 723, prescribed maximum contributions and expenditures limitation of $3,000,000 for any calendar year, prior to repeal by Pub. L. 92–225, title II, § 204, Feb. 7, 1972, 86 Stat. 10, effective sixty days after Feb. 7, 1972.

Section applicable with respect to elections taking place after Dec. 31, 1987, see section 204 of Pub. L. 99–410, set out as a note under section 1973ff of Title 42, The Public Health and Welfare.