26 U.S.C. § 6231
(a) In general The Secretary shall mail to the partnership and the partnership representative—
Any notice of a final partnership adjustment shall not be mailed earlier than 270 days after the date on which the notice of the proposed partnership adjustment is mailed. Such notices shall be sufficient if mailed to the last known address of the partnership representative or the partnership (even if the partnership has terminated its existence). The first sentence shall apply to any proceeding with respect to an administrative adjustment request filed by a partnership under section 6227.
(Added Pub. L. 114–74, title XI, § 1101(c)(1), , 129 Stat. 632.)
A prior section 6231, added Pub. L. 97–248, title IV, § 402(a), , 96 Stat. 663; amended Pub. L. 98–369, div. A, title VII, § 714(p)(2)(B)–(D), (I), , 98 Stat. 964, 965; Pub. L. 105–34, title XI, § 1141(b), title XII, §§ 1232(a), 1234(a), , 111 Stat. 981, 1023, 1024; Pub. L. 105–206, title III, § 3507(a), , 112 Stat. 772; Pub. L. 107–147, title IV, §§ 416(d)(1)(C), 417(19)(C), , 116 Stat. 55, 57, which defined terms for purposes of this subchapter and listed special rules for partnership items, prior to repeal by Pub. L. 114–74, title XI, § 1101(a), , 129 Stat. 625.
Section applicable to returns filed for partnership taxable years beginning after , with certain exceptions, see section 1101(g) of Pub. L. 114–74, set out as a note under section 6221 of this title.
Pub. L. 97–248, title IV, § 406, , 96 Stat. 670, as amended by Pub. L. 99–514, § 2, , 100 Stat. 2095, provided that:
“[Former] Subchapter C of chapter 63 of the Internal Revenue Code of 1986 [formerly I.R.C. 1954] (relating to tax treatment of partnership items), section 6031 of such Code (relating to returns of partnership income), and section 6046A of such Code (relating to returns as to interest in foreign partnerships) shall not apply to the International Telecommunications Satellite Organization, the International Maritime Satellite Organization, and any organization which is a successor of either of such organizations.”