Treasury Regulations (26 C.F.R.)
26 CFR § 1.1033(h)-1 — (h)-1 Effective date.
Except as provided otherwise in § 1.1033(e)-1 and § 1.1033(g)-1, the provisions of section 1033 and the regulations thereunder are effective for taxable years beginning after December 31, 1953, and ending after August 16, 1954.
Source: official text