1970—Pub. L. 91–258 substituted “section 4263(a)” for “section 4264(a)”.
1965—Pub. L. 89–44 struck out reference to section 4231 and struck out sentence referring to tax imposed on life memberships by section 4241.
1958—Pub. L. 85–859 substituted “Except as otherwise provided in sections 3241 and 4262(a)” for “Except as provided in section 4264(a)”.
1956—Act
Amendment by Pub. L. 91–258 effective on
Pub. L. 89–44, title VII, § 701(b)(1),
Amendment by Pub. L. 85–859 effective on first day of first calendar quarter which begins more than 60 days after
Amendment by act