Notwithstanding the provisions of section 358(a)2  of this title, the rate of contribution required to be paid under the Railroad Unemployment Insurance Act [45 U.S.C. 351 et seq.] by every employer as defined in such Act shall be 4 per centum with respect to compensation as defined in such Act, paid after December 31, 1961, and before January 1, 1964.
45 U.S. Code § 404. Temporary increase in employers’ contribution rate
The Railroad Unemployment Insurance Act, referred to in text, is act June 25, 1938, ch. 680, 52 Stat. 1094, as amended, which is classified principally to chapter 11 (§ 351 et seq.) of this title. For complete classification of this Act to the Code, see section 367 of this title and Tables.
 See References in Text note below.