26 U.S.C. § 6678
Section, added Pub. L. 87–834, § 19(e), , 76 Stat. 1058; amended Pub. L. 88–272, title II, §§ 204(c)(2), 221(b)(3), , 78 Stat. 37, 75; Pub. L. 94–455, title XIX, § 1906(b)(13)(A), , 90 Stat. 1834; Pub. L. 96–167, § 7(b)(2), , 93 Stat. 1277; Pub. L. 97–34, title VII, § 723(a)(2), (b)(2), , 95 Stat. 343, 344; Pub. L. 97–248, title III, §§ 309(b)(3), 311(a)(2), 312(b), 314(b), 315(c), , 96 Stat. 595, 600, 602, 605, 607; Pub. L. 97–448, title II, § 201(i)(3), , 96 Stat. 2395; Pub. L. 98–67, title I, § 105(b)(2), , 97 Stat. 381; Pub. L. 98–369, div. A, title I, §§ 145(b)(3), 146(b)(3), 148(b)(3), 149(b)(2), (3), 155(b)(2)(B), title VII, § 714(f), (q)(3), , 98 Stat. 685, 686, 689, 690, 693, 961, 966; Pub. L. 99–514, title XVIII, § 1811(c)(1), , 100 Stat. 2833, related to penalties for failure to furnish certain statements.
Repeal applicable to returns the due date for which (determined without regard to extensions) is after , see section 1501(e) of Pub. L. 99–514, set out as an Effective Date note under section 6721 of this title.