§ 1. Tax imposed

Subsec. (b). Pub. L. 95–600 generally made a downward revision of tax table for heads of household resulting in a table under which, among other changes, a bottom bracket imposing no tax on taxable income of $2,300 or less was substituted for a bottom bracket imposing no tax on taxable income of $2,200 or less.

Subsec. (c). Pub. L. 95–600 generally made a downward revision of tax table for unmarried individuals other than surviving spouses and heads of households resulting in a table under which, among other changes, a bottom bracket imposing no tax on taxable income of $2,300 or less was substituted for a bottom bracket imposing no tax on taxable income of $2,200 or less.

Subsec. (d). Pub. L. 95–600 generally made a downward revision of tax tables for married individuals filing separate returns resulting in a table under which, among other changes, a bottom bracket imposing no tax on taxable income of $1,700 or less was substituted for a bottom bracket imposing no tax on taxable income of $1,600 or less.

Subsec. (e). Pub. L. 95–600 generally made a downward revision of tax tables for estates and trusts resulting in a table under which, among other changes, a bottom bracket under which a tax of 14% is imposed on taxable income of $1,050 for a bottom bracket under which a tax of 14% was imposed on taxable income of $500 or less.

1977—Subsec. (a). Pub. L. 95–30 generally made a downward revision of tax table for married individuals filing joint returns and surviving spouses resulting in a table under which, among other changes, a bottom bracket imposing no tax on taxable income of $3,200 or less was substituted for a bottom bracket under which a tax of 14% had been imposed on a taxable income of $1,000 or less.

Subsec. (b). Pub. L. 95–30 generally made a downward revision of tax table for heads of households resulting in a table under which, among other changes, a bottom bracket imposing no tax on taxable income of $2,200 or less was substituted for a bottom bracket under which a tax of 14% had been imposed on a taxable income of $1,000 or less.

Subsec. (c). Pub. L. 95–30 generally made a downward revision of tax table for unmarried individuals other than surviving spouses and heads of households resulting in a table under which, among other changes, a bottom bracket imposing no tax on taxable income of $2,200 or less was substituted for a bottom bracket under which a tax of 14% had been imposed on a taxable income of $500 or less.

Subsec. (d). Pub. L. 95–30 generally made a downward revision of tax table for married individuals filing separate returns resulting in a table under which, among other changes, a bottom bracket imposing no tax on taxable income of $1,600 or less was substituted for a bottom bracket under which a tax of 14% had been imposed on a taxable income of $500 or less. Provisions making table applicable to estates and trusts were struck out. See subsec. (e).

Subsec. (e). Pub. L. 95–30 added subsec. (e) consisting of table formerly contained in subsec. (d) but without any downward revision and limited so as to apply only to estates and trusts.

1969—Subsec. (a). Pub. L. 91–172 substituted a table of rates of tax for married individuals filing joint returns and surviving spouses for the tables of rates of tax on individuals. For rates of taxes on unmarried individuals and married persons filing separate returns, see subsecs. (c) and (d) of this section.

Subsec. (b). Pub. L. 91–172 generally revised rates of tax of heads of household downwards and struck out provisions defining head of household, determination of status, and limitations. For definition of head of household, determination of status, and limitations, see section 2(b) of this title.

Subsec. (c). Pub. L. 91–172 substituted rates of tax on unmarried individuals (other than surviving spouses and heads of household) for special rules explaining the rates of tax imposed under former subsecs. (a) and (b)(1) and prescribing a maximum limit of 87 percent of the taxable year.

Subsec. (d). Pub. L. 91–172 substituted a table of rates of tax for married individuals filing separate returns for provision prescribing the applicability of the rates to non-resident aliens. For applicability of rates of tax to non-resident aliens, see section 2(d) of this title.

Subsec. (e). Pub. L. 91–172 struck out cross reference to section 63. See section 2(e) of this title.

1966—Subsecs. (d), (e). Pub. L. 89–809 added subsec. (d) and redesignated former subsec. (d) as (e).

1964—Pub. L. 88–272 amended section generally by splitting the former first bracket which started at $2,000 into four new brackets, the 14 percent bracket representing a 30 percent reduction, the 15 percent bracket a 25 percent cut, and the 16 percent bracket a 20 percent cut, and reducing all other brackets by cuts averaging about 20 percent and effectuated these cuts in two steps, one in 1964, and one in 1965.

	“In the case of taxable years beginning during calendar year:	The corresponding percentages shall be substituted forthe following percentages:
28%	31%	36%	39.6%
	2001	27.5%	30.5%	35.5%	39.1%
	2002 and 2003	27.0%	30.0%	35.0%	38.6%
	2004 and 2005	26.0%	29.0%	34.0%	37.6%
	2006 and thereafter	25.0%	28.0%	33.0%	35.0%”

Statutory Notes and Related Subsidiaries

Effective Date of 2025 Amendment

Pub. L. 119–21, title VII, § 70101(c), July 4, 2025, 139 Stat. 158, provided that: “The amendments made by this section [amending this section] shall apply to taxable years beginning after December 31, 2025.”

Effective Date of 2019 Amendment

Pub. L. 116–94, div. O, title V, § 501(c), Dec. 20, 2019, 133 Stat. 3181, provided that: “(1) In general.—Except as otherwise provided in this subsection, the amendment made by subsection (a) [amending this section] shall apply to taxable years beginning after December 31, 2019. “(2) Coordination with alternative minimum tax.—The amendment made by subsection (b) [amending section 55 of this title] shall apply to taxable years beginning after December 31, 2017. “(3) Elective retroactive application.—A taxpayer may elect (at such time and in such manner as the Secretary of the Treasury (or the Secretary’s designee) may provide) for the amendment made by subsection (a) to also apply to taxable years of the taxpayer which begin in 2018, 2019, or both (as specified by the taxpayer in such election).”

Effective Date of 2017 Amendment

Pub. L. 115–97, title I, § 11001(c), Dec. 22, 2017, 131 Stat. 2059, provided that: “The amendments made by this section [amending this section and section 6695 of this title] shall apply to taxable years beginning after December 31, 2017.”

Pub. L. 115–97, title I, § 11002(e), Dec. 22, 2017, 131 Stat. 2063, provided that: “The amendments made by this section [amending this section and sections 23, 25A, 25B, 32, 36B, 41, 42, 45R, 55, 59, 62, 63, 68, 125, 132, 135, 137, 146, 147, 151, 162, 179, 213, 219–221, 223, 280F, 408A, 430, 512, 513, 831, 877A, 911, 1274A, 2010, 2032A, 2503, 4161, 4261, 4980I, 5000A, 6039F, 6323, 6334, 6601, 6651, 6652, 6695, 6698, 6699, 6721, 6722, 7345, 7430, 7872, and 9831 of this title] shall apply to taxable years beginning after December 31, 2017.”

Pub. L. 115–97, title I, § 14223(b), Dec. 22, 2017, 131 Stat. 2221, provided that: “The amendments made by this section [amending this section] shall apply to dividends received after the date of the enactment of this Act [Dec. 22, 2017].”

Effective Date of 2014 Amendment

Pub. L. 113–295, div. A, title II, § 221(b), Dec. 19, 2014, 128 Stat. 4055, provided that: “(1) General rule.—Except as otherwise provided in subsection (a) [see Tables for classification] or paragraph (2) of this subsection, the amendments made by this section [see Tables for classification] shall take effect on the date of enactment of this Act [Dec. 19, 2014]. “(2) Savings provision.—If—“(A) any provision amended or repealed by the amendments made by this section applied to—“(i) any transaction occurring before the date of the enactment of this Act, “(ii) any property acquired before such date of enactment, or “(iii) any item of income, loss, deduction, or credit taken into account before such date of enactment, and “(B) the treatment of such transaction, property, or item under such provision would (without regard to the amendments or repeals made by this section) affect the liability for tax for periods ending after [such] date of enactment, nothing in the amendments or repeals made by this section shall be construed to affect the treatment of such transaction, property, or item for purposes of determining liability for tax for periods ending after such date of enactment.”

Effective Date of 2013 Amendment

Pub. L. 112–240, title I, § 101(b)(3), Jan. 2, 2013, 126 Stat. 2317, provided that: “The amendments made by this subsection [amending this section and sections 68 and 151 of this title] shall apply to taxable years beginning after December 31, 2012.”

Pub. L. 112–240, title I, § 102(d), Jan. 2, 2013, 126 Stat. 2319, provided that: “(1) In general.—Except as otherwise provided, the amendments made by subsections (b) and (c) [amending this section, sections 55, 531, 541, 1445, and 7518 of this title, and section 53511 of Title 46, Shipping] shall apply to taxable years beginning after December 31, 2012. “(2) Withholding.—The amendments made by paragraphs (1)(C) and (3) of subsection (c) [amending section 1445 of this title] shall apply to amounts paid on or after January 1, 2013.”

Effective and Termination Dates of 2010 Amendment

Pub. L. 111–148, title X, § 10909(c), Mar. 23, 2010, 124 Stat. 1023, as amended by Pub. L. 111–312, title I, § 101(b)(1), Dec. 17, 2010, 124 Stat. 3298, provided that: “Each provision of law amended by this section [amending sections 23, 24, 25, 25A, 25B, 26, 30, 30B, 30D, 36C, 137, 904, 1016, 1400C, and 6211 of this title and section 1324 of Title 31, Money and Finance, and renumbering section 23 of this title as section 36C of this title] is amended to read as such provision would read if this section had never been enacted. The amendments made by the preceding sentence shall apply to taxable years beginning after December 31, 2011.”

Pub. L. 111–148, title X, § 10909(d), Mar. 23, 2010, 124 Stat. 1024, as amended by Pub. L. 111–312, title I, § 101(b)(2), Dec. 17, 2010, 124 Stat. 3298, provided that: “Except as provided in subsection (c) [set out as a note above], the amendments made by this section [amending sections 24, 25, 25A, 25B, 26, 30, 30B, 30D, 36C, 137, 904, 1016, 1400C, and 6211 of this title and section 1324 of Title 31, Money and Finance, and renumbering section 23 of this title as section 36C of this title] shall apply to taxable years beginning after December 31, 2009.”

Effective Date of 2007 Amendment

Pub. L. 110–28, title VIII, § 8241(c), May 25, 2007, 121 Stat. 199, provided that: “The amendment made by this section [amending this section] shall apply to taxable years beginning after the date of the enactment of this Act [May 25, 2007].”

Effective Date of 2006 Amendment

Pub. L. 109–222, title V, § 510(d), May 17, 2006, 120 Stat. 364, provided that: “The amendments made by this section [amending this section] shall apply to taxable years beginning after December 31, 2005.”

Effective and Termination Dates of 2004 Amendment

Pub. L. 108–357, title IV, § 413(d), Oct. 22, 2004, 118 Stat. 1510, provided that: “(1) In general.—Except as provided in paragraph (2), the amendments made by this section [amending this section and sections 170, 171, 245, 312, 443, 465, 508, 542, 543, 562, 563, 751, 864, 898, 904, 951, 954, 989, 1014, 1016, 1212, 1223, 1248, 1260, 1291, 1294, 4947, 4948, 6103, 6501, and 6679 of this title and repealing sections 551 to 558, 1246, 1247, and 6035 of this title] shall apply to taxable years of foreign corporations beginning after December 31, 2004, and to taxable years of United States shareholders with or within which such taxable years of foreign corporations end. “(2) Subsection (c)(27).—The amendments made by subsection (c)(27) [amending section 6103 of this title] shall apply to disclosures of return or return information with respect to taxable years beginning after December 31, 2004.”

Pub. L. 108–311, title I, § 101(e), Oct. 4, 2004, 118 Stat. 1168, provided that: “The amendments made by this section [amending this section and sections 24 and 63 of this title] shall apply to taxable years beginning after December 31, 2003.”

Pub. L. 108–311, title I, § 105, Oct. 4, 2004, 118 Stat. 1169, provided that: “Each amendment made by this title [amending this section and sections 24, 32, 55, and 63 of this title] shall be subject to title IX of the Economic Growth and Tax Relief Reconciliation Act of 2001 [Pub. L. 107–16, § 901, which was repealed by Pub. L. 112–240, title I, § 101(a)(1), Jan. 2, 2013, 126 Stat. 2315, was formerly set out as an Effective and Termination Dates of 2001 Amendment note below] to the same extent and in the same manner as the provision of such Act to which such amendment relates.”

Pub. L. 108–311, title IV, § 402(b), Oct. 4, 2004, 118 Stat. 1186, provided that: “The amendments made by subsection (a) [amending this section and sections 691, 854, and 857 of this title and provisions set out as a note under this section] shall take effect as if included in section 302 of the Jobs and Growth Tax Relief Reconciliation Act of 2003 [Pub. L. 108–27].”

Effective and Termination Dates of 2003 Amendment

Pub. L. 108–27, title I, § 102(c), May 28, 2003, 117 Stat. 754, provided that: “The amendments made by this section [amending this section and provisions set out as a note under this section] shall apply to taxable years beginning after December 31, 2002.”

Pub. L. 108–27, title I, § 104(c), May 28, 2003, 117 Stat. 755, provided that: “(1) In general.—The amendments made by this section [amending this section] shall apply to taxable years beginning after December 31, 2002. “(2) Tables for 2003.—The Secretary of the Treasury shall modify each table which has been prescribed under section 1(f) of the Internal Revenue Code of 1986 for taxable years beginning in 2003 and which relates to the amendment made by subsection (a) to reflect such amendment.”

Pub. L. 108–27, title I, § 105(b), May 28, 2003, 117 Stat. 755, provided that: “The amendment made by this section [amending this section] shall apply to taxable years beginning after December 31, 2002.”

Pub. L. 108–27, title I, § 107, May 28, 2003, 117 Stat. 755, provided that: “Each amendment made by this title [enacting section 6429 of this title, amending this section and sections 24, 55, and 63 of this title, and amending provisions set out as notes under this section] shall be subject to title IX of the Economic Growth and Tax Relief Reconciliation Act of 2001 [Pub. L. 107–16, § 901, which was repealed by Pub. L. 112–240, title I, § 101(a)(1), Jan. 2, 2013, 126 Stat. 2315, was formerly set out as an Effective and Termination Dates of 2001 Amendment note below] to the same extent and in the same manner as the provision of such Act to which such amendment relates.”

Pub. L. 108–27, title III, § 301(d), May 28, 2003, 117 Stat. 760, provided that: “(1) In general.—Except as otherwise provided by this subsection, the amendments made by this section [amending this section, sections 55, 57, 1445, and 7518 of this title, and section 1177 of Title 46, Appendix, Shipping] shall apply to taxable years ending on or after May 6, 2003. “(2) Withholding.—The amendment made by subsection (a)(2)(C) [amending section 1445 of this title] shall apply to amounts paid after the date of the enactment of this Act [May 28, 2003]. “(3) Small business stock.—The amendments made by subsection (b)(3) [amending section 57 of this title] shall apply to dispositions on or after May 6, 2003.”

Pub. L. 108–27, title III, § 302(f), May 28, 2003, 117 Stat. 764, as amended by Pub. L. 108–311, title IV, § 402(a)(6), Oct. 4, 2004, 118 Stat. 1185, provided that: “(1) In general.—Except as provided in paragraph (2), the amendments made by this section [amending this section and sections 163, 301, 306, 338, 467, 531, 541, 584, 702, 854, 857, 1255, and 1257 of this title and repealing section 341 of this title] shall apply to taxable years beginning after December 31, 2002. “(2) Pass-thru entities.—In the case of a pass-thru entity described in subparagraph (A), (B), (C), (D), (E), or (F) of section 1(h)(10) of the Internal Revenue Code of 1986, as amended by this Act, the amendments made by this section shall apply to taxable years ending after December 31, 2002; except that dividends received by such an entity on or before such date shall not be treated as qualified dividend income (as defined in section 1(h)(11)(B) of such Code, as added by this Act).”

Pub. L. 108–27, title III, § 303, May 28, 2003, 117 Stat. 764, as amended by Pub. L. 109–222, title I, § 102, May 17, 2006, 120 Stat. 346; Pub. L. 111–312, title I, § 102(a), Dec. 17, 2010, 124 Stat. 3298, which provided that all provisions of, and amendments made by, title III of Pub. L. 108–27 would not apply to taxable years beginning after Dec. 31, 2012, and that the Internal Revenue Code of 1986 would be applied and administered to such years as if such provisions and amendments had never been enacted, was repealed by Pub. L. 112–240, title I, § 102(a), Jan. 2, 2013, 126 Stat. 2318.

Effective and Termination Dates of 2001 Amendment

Pub. L. 111–312, title II, § 201(c), Dec. 17, 2010, 124 Stat. 3299, provided that: “Title IX of the Economic Growth and Tax Relief Reconciliation Act of 2001 [Pub. L. 107–16, § 901, formerly set out below] (relating to sunset of provisions of such Act) shall not apply to title VII of such Act [Pub. L. 107–16, § 701, amending section 55 of this title and enacting provisions set out as a note under section 55 of this title] (relating to alternative minimum tax).”

Pub. L. 109–280, title VIII, § 811, Aug. 17, 2006, 120 Stat. 996, provided that: “Title IX of the Economic Growth and Tax Relief Reconciliation Act of 2001 [Pub. L. 107–16, § 901, formerly set out below] shall not apply to the provisions of, and amendments made by, subtitles A through F of title VI of such Act [subtitles A to F [§§ 601–666] of title VI of Pub. L. 107–16, enacting sections 25B, 45E, 402A, and 4980F of this title, amending sections 24, 25, 25B, 26, 38, 39, 72, 132, 196, 219, 401, 402, 403, 404, 408, 408A, 409, 411, 412, 414 to 416, 457, 501, 505, 664, 861, 904, 1400C, 3401, 3405, 4972, 4973, 4975, 4979A, 6047, and 6051 of this title and sections 1003, 1053, 1054, 1082, 1104, and 1108 of Title 29, Labor, enacting provisions set out as notes under sections 24, 38, 72, 132, 219, 401, 402, 403, 404, 408, 409, 411, 412, 414 to 416, 457, 861, 4972, 4975, 4980F, and 7801 of this title and section 1107 of Title 29, and amending provisions set out as notes under section 414 of this title and section 1107 of Title 29] (relating to pension and individual retirement arrangement provisions).”

Pub. L. 109–280, title XIII, § 1304(a), Aug. 17, 2006, 120 Stat. 1109, provided that: “Section 901 of the Economic Growth and Tax Relief Reconciliation Act of 2001 [Pub. L. 107–16, formerly set out below] (relating to sunset provisions) shall not apply to section 402 of such Act [amending sections 72, 135, 221, 529, 530, 4973, and 6693 of this title and enacting provisions set out as a note under section 72 of this title] (relating to modifications to qualified tuition programs).”

Pub. L. 107–16, title I, § 101(d), June 7, 2001, 115 Stat. 44, provided that: “(1) In general.—Except as provided in paragraph (2), the amendments made by this section [enacting section 6428 of this title and amending this section and sections 15, 531, 541, 3402, and 3406 of this title] shall apply to taxable years beginning after December 31, 2000. “(2) Amendments to withholding provisions.—The amendments made by paragraphs (6), (7), (8), (9), (10), and (11) of subsection (c) [amending sections 3402 and 3406 of this title] shall apply to amounts paid after the 60th day after the date of the enactment of this Act [June 7, 2001]. References to income brackets and rates of tax in such paragraphs shall be applied without regard to [former] section 1(i)(1)(D) of the Internal Revenue Code of 1986.”

Pub. L. 107–16, title III, § 301(d), June 7, 2001, 115 Stat. 54, as amended by Pub. L. 108–27, title I, § 103(b), May 28, 2003, 117 Stat. 754, provided that: “The amendments made by this section [amending this section and section 63 of this title] shall apply to taxable years beginning after December 31, 2002.”

Pub. L. 107–16, title III, § 302(c), June 7, 2001, 115 Stat. 54, as amended by Pub. L. 108–27, title I, § 102(b)(2), May 28, 2003, 117 Stat. 754, provided that: “The amendments made by this section [amending this section] shall apply to taxable years beginning after December 31, 2002.”

Pub. L. 107–16, title IX, § 901, June 7, 2001, 115 Stat. 150, as amended by Pub. L. 107–358, § 2, Dec. 17, 2002, 116 Stat. 3015; Pub. L. 111–312, title I, § 101(a)(1), Dec. 17, 2010, 124 Stat. 3298, which provided that all provisions of, and amendments made by, Pub. L. 107–16 (except for section 803 thereof (26 U.S.C. note prec. 101)) would not apply to taxable, plan, or limitation years beginning after Dec. 31, 2012, or, in the case of title V of Pub. L. 107–16, to estates of decedents dying, gifts made, or generation skipping transfers, after Dec. 31, 2012, and that the Internal Revenue Code of 1986 and the Employee Retirement Income Security Act of 1974 (29 U.S.C. 1001 et seq.) would be applied and administered to such years, estates, gifts, and transfers as if such provisions and amendments had never been enacted, was repealed by Pub. L. 112–240, title I, § 101(a)(1), Jan. 2, 2013, 126 Stat. 2315.

[Pub. L. 112–240, title I, § 101(a)(3), Jan. 2, 2013, 126 Stat. 2316, provided that: “The amendments made by this subsection [repealing section 901 of Pub. L. 107–16, formerly set out above, and provisions set out as an Effective and Termination Dates of 2010 Amendment note under section 121 of this title] shall apply to taxable, plan, or limitation years beginning after December 31, 2012, and estates of decedents dying, gifts made, or generation skipping transfers after December 31, 2012.” ]

Effective Date of 2000 Amendment

Pub. L. 106–554, § 1(a)(7) [title I, § 117(c)], Dec. 21, 2000, 114 Stat. 2763, 2763A–605, provided that: “The amendments made by this section [amending this section and section 1202 of this title] shall apply to stock acquired after the date of the enactment of this Act [Dec. 21, 2000].”

Effective Date of 1998 Amendment

Pub. L. 105–277, div. J, title IV, § 4002(k), Oct. 21, 1998, 112 Stat. 2681–908, provided that: “The amendments made by this section [amending this section and sections 408A, 6015, 6103, 6159, 7421, 7443A, and 7491 of this title and amending provisions set out as a note under section 6601 of this title] shall take effect as if included in the provisions of the 1998 Act [Pub. L. 105–206] to which they relate.”

Pub. L. 105–206, title V, § 5001(b), July 22, 1998, 112 Stat. 788, provided that: “(1) In general.—Except as provided in paragraph (2), the amendments made by this section [amending this section and sections 1223 and 1235 of this title] shall apply to taxable years ending after December 31, 1997. “(2) Subsection (a)(5).—The amendments made by subsection (a)(5) [amending sections 1223 and 1235 of this title] shall take effect on January 1, 1998.”

Pub. L. 105–206, title VI, § 6024, July 22, 1998, 112 Stat. 826, provided that: “Except as otherwise provided in this title [see Tables for classification], the amendments made by this title shall take effect as if included in the provisions of the Taxpayer Relief Act of 1997 [Pub. L. 105–34] to which they relate.”

Effective Date of 1997 Amendment

Pub. L. 105–34, title III, § 311(d), Aug. 5, 1997, 111 Stat. 835, provided that: “(1) In general.—Except as provided in paragraph (2), the amendments made by this section [amending this section, sections 55, 57, 904, 1445, and 7518 of this title, and section 1177 of Title 46, Appendix, Shipping] shall apply to taxable years ending after May 6, 1997. “(2) Withholding.—The amendment made by subsection (c)(1) [amending section 1445 of this title] shall apply only to amounts paid after the date of the enactment of this Act [Aug. 5, 1997].”

Effective Date of 1996 Amendment

Pub. L. 104–188, title I, § 1704(m)(4), Aug. 20, 1996, 110 Stat. 1883, provided that: “The amendments made by this subsection [amending this section and section 59 of this title] shall apply to taxable years beginning after December 31, 1995.”

Effective Date of 1993 Amendment

Pub. L. 103–66, title XIII, § 13201(c), Aug. 10, 1993, 107 Stat. 459, provided that: “The amendments made by this section [amending this section and sections 41, 63, 68, 132, 151, 453A, 513, 531, and 541 of this title] shall apply to taxable years beginning after December 31, 1992.”

Pub. L. 103–66, title XIII, § 13202(c), Aug. 10, 1993, 107 Stat. 461, provided that: “The amendments made by this section [amending this section and sections 531 and 541 of this title] shall apply to taxable years beginning after December 31, 1992.”

Pub. L. 103–66, title XIII, § 13206(d)(3), Aug. 10, 1993, 107 Stat. 467, provided that: “The amendments made by this subsection [amending this section and section 163 of this title] shall apply to taxable years beginning after December 31, 1992.”

Effective Date of 1990 Amendment

Pub. L. 101–508, title XI, § 11101(e), Nov. 5, 1990, 104 Stat. 1388–405, provided that: “The amendments made by this section [amending this section, sections 32, 41, 59, 63, 135, 151, 513, 691, 904, 6103, and 7518 of this title, and section 1177 of Title 46, Appendix, Shipping] shall apply to taxable years beginning after December 31, 1990.”

Pub. L. 101–508, title XI, § 11103(e), Nov. 5, 1990, 104 Stat. 1388–407, provided that: “The amendments made by this section [enacting section 68 of this title and amending this section and section 56 of this title] shall apply to taxable years beginning after December 31, 1990.”

Pub. L. 101–508, title XI, § 11104(c), Nov. 5, 1990, 104 Stat. 1388–408, provided that: “The amendments made by this section [amending this section and section 151 of this title] shall apply to taxable years beginning after December 31, 1990.”

Effective Date of 1989 Amendment

Pub. L. 101–239, title VII, § 7817, Dec. 19, 1989, 103 Stat. 2423, provided that: “Except as otherwise provided in this part [part I (§§ 7811–7817) of subtitle H of title VII of Pub. L. 101–239, see Tables for classification], any amendment made by this part shall take effect as if included in the provision of the 1988 Act [Pub. L. 100–647] to which such amendment relates.”

Pub. L. 101–239, title VII, § 7831(g), Dec. 19, 1989, 103 Stat. 2427, provided that: “Any amendment made by this section [amending this section and sections 42, 406, 407, and 1250 of this title and provisions set out as notes under sections 141 and 263A of this title] shall take effect as if included in the provision of the Tax Reform Act of 1986 [Pub. L. 99–514] to which such amendment relates.”

Effective Date of 1988 Amendment

Pub. L. 100–647, title I, § 1019, Nov. 10, 1988, 102 Stat. 3593, provided that: “(a) General Rule.—Except as otherwise provided in this title, any amendment made by this title [see Tables for classification], shall take effect as if included in the provision of the Reform Act [Pub. L. 99–514] to which such amendment relates. “(b) Waiver of Estimated Tax Penalties.—No addition to tax shall be made under section 6654 or 6655 of the 1986 Code for any period before April 16, 1989 (March 16, 1989 in the case of a taxpayer subject to section 6655 of the 1986 Code) with respect to any underpayment to the extent such underpayment was created or increased by any provision of this title or title II [see Tables for classification].”

Pub. L. 100–647, title VI, § 6006(b), Nov. 10, 1988, 102 Stat. 3687, provided that: “The amendment made by this section [amending this section] shall apply to taxable years beginning after December 31, 1988.”

Effective Date of 1986 Amendment

Pub. L. 99–514, title I, § 151, Oct. 22, 1986, 100 Stat. 2121, provided that: “(a) General Rule.—Except as otherwise provided in this section, the amendments made by this title [enacting section 67 of this title, amending this section, sections 3, 5, 15, 21, 32, 62, 63, 74, 85, 86, 102, 108, 117, 129, 151, 152, 164, 170, 172, 183, 213, 265, 274, 280A, 402, 441, 443, 527, 541, 613A, 642, 667, 861, 862, 901, 904, 1398, 1441, 2032A, 3121, 3231, 3306, 3401, 3402, 3507, 4941, 4945, 6012 to 6014, 6212, 6504, 6511, and 7871 of this title, and section 409 of Title 42, The Public Health and Welfare, renumbering section 223 of this title as section 220 of this title, repealing sections 24, 221, 222, and 1301 to 1305 of this title, and enacting provisions set out as a note under section 32 of this title] shall apply to taxable years beginning after December 31, 1986. “(b) Unemployment Compensation.—The amendment made by section 121 [amending section 85 of this title] shall apply to amounts received after December 31, 1986, in taxable years ending after such date. “(c) Prizes and Awards.—The amendments made by section 122 [amending sections 74, 102, 274, 3121, 3231, 3306, 3401, 4941, and 4945 of this title and section 409 of Title 42, The Public Health and Welfare] shall apply to prizes and awards granted after December 31, 1986. “(d) Scholarships.—The amendments made by section 123 [amending sections 74, 117, 1441, and 7871 of this title] shall apply to taxable years beginning after December 31, 1986, but only in the case of scholarships and fellowships granted after August 16, 1986. “(e) Parsonage and Military Housing Allowances.—The amendment made by section 144 [amending section 265 of this title] shall apply to taxable years beginning before, on, or after, December 31, 1986.”

Pub. L. 99–514, title III, § 302(b), Oct. 22, 1986, 100 Stat. 2218, provided that: “The amendment made by this section [amending this section] shall apply to taxable years beginning after December 31, 1986.”

Pub. L. 99–514, title XIV, § 1411(c), Oct. 22, 1986, 100 Stat. 2716, provided that: “The amendments made by this section [amending this section and section 6103 of this title] shall apply to taxable years beginning after December 31, 1986.”

Effective Date of 1983 Amendment

Pub. L. 97–448, title I, § 109, Jan. 12, 1983, 96 Stat. 2391, provided that: “Except as otherwise provided in this title, any amendment made by this title [see Tables for classification] shall take effect as if it had been included in the provision of the Economic Recovery Tax Act of 1981 [Pub. L. 97–34, Aug. 13, 1981, 95 Stat. 172] to which such amendment relates.”

Effective Date of 1981 Amendment

Pub. L. 97–34, title I, § 101(f)(1), Aug. 13, 1981, 95 Stat. 185, as amended by Pub. L. 97–448, title I, § 101(a)(1), Jan. 12, 1983, 96 Stat. 2365, provided that: “The amendments made by subsections (a), (c), and (d) [amending this section and sections 3, 21, 55, 541, and 1304 of this title and repealing section 1348 of this title] shall apply to taxable years beginning after December 31, 1981; except that the amendment made by paragraph (3) of subsection (d) [amending section 21 of this title] shall apply to taxable years ending after December 31, 1981.”

Pub. L. 97–34, title I, § 104(e), Aug. 13, 1981, 95 Stat. 190, provided that: “The amendments made by this section [amending this section and sections 63, 151, 6012, and 6013 of this title] shall apply to taxable years beginning after December 31, 1984.”

Effective Date of 1978 Amendment

Pub. L. 95–600, title I, § 101(f)(1), Nov. 6, 1978, 92 Stat. 2770, provided that: “The amendments made by subsections (a), (b), (c), and (d) [amending sections 63, 402, 1302, and 6012 of this title] shall apply to taxable years beginning after December 31, 1978.”

Effective Date of 1977 Amendment

Pub. L. 95–30, title I, § 106(a), May 23, 1977, 91 Stat. 141, provided that: “The amendments made by sections 101, 102, and 104 [amending this section and sections 3, 21, 42, 57, 63, 143, 161, 172, 211, 402, 441, 443, 511, 584, 613A, 641, 642, 667, 703, 861, 862, 873, 904, 911, 931, 1034, 1211, 1302, 6012, 6014, 6212, 6504, and 6654 of this title and repealing sections 36, 141, 142, 144, and 145 of this title] shall apply to taxable years beginning after December 31, 1976.”

Effective Date of 1969 Amendment

Pub. L. 91–172, title VIII, § 803(f), Dec. 30, 1969, 83 Stat. 685, as amended by Pub. L. 99–514, § 2, Oct. 22, 1986, 100 Stat. 2095, provided that: “The amendments made by subsections (a) [amending this section], (b) [amending section 2 of this title], and (d) (other than paragraphs (1) and (8)) [amending sections 5, 511, 632, 641, 1347, and 6015 of this title] shall apply to taxable years beginning after December 31, 1970, except that section 2(c) of the Internal Revenue Code of 1986 [formerly I.R.C. 1954] [section 2(c) of this title], as amended by subsection (b), shall also apply to taxable years beginning after December 31, 1969. The amendments made by subsections (c) [amending section 3 of this title], (d)(1) [amending section 6014 of this title], and (d)(8) [amending section 1304 of this title] shall apply to taxable years beginning after December 31, 1969”.

Effective Date of 1966 Amendment

Pub. L. 89–809, title I, § 103(n), Nov. 13, 1966, 80 Stat. 1555, provided that: “(1) The amendments made by this section (other than the amendments made by subsections (h), (i), and (k)) [enacting section 877 of this title, amending this section and sections 116, 154, 871, 872, 873, 874, 875, 932, 6015, and 7701 of this title, renumbering section 877 as 878, and repealing section 1493 of this title] shall apply with respect to taxable years beginning after December 31, 1966. “(2) The amendments made by subsection (h) [amending section 1441 of this title] shall apply with respect to payments made in taxable years of recipients beginning after December 31, 1966. “(3) The amendments made by subsection (i) [amending section 1461 of this title] shall apply with respect to payments occurring after December 31, 1966. “(4) The amendments made by subsection (k) [amending section 3401 of this title] shall apply with respect to remuneration paid after December 31, 1966.”

Effective Date of 1964 Amendment

Pub. L. 88–272, title I, § 131, Feb. 26, 1964, 78 Stat. 30, as amended by Pub. L. 99–514, § 2, Oct. 22, 1986, 100 Stat. 2095, provided that: “Except for purposes of section 21 of the Internal Revenue Code of 1986 [formerly I.R.C. 1954] (relating to effect of changes in rates during a taxable year), the amendments made by parts I and II of this title [amending this section and sections 2, 11, 37, 141, 144, 242, 821, 871, 963, 6016, 6074, 6154, 6212, 6504, and 6655 of this title] shall apply with respect to taxable years beginning after December 31, 1963.”

Short Title of 2025 Amendment

Pub. L. 119–64, § 1, Dec. 26, 2025, 139 Stat. 1984, provided that: “This Act [amending sections 6303 and 7508A of this title and enacting provisions set out as notes under sections 6303 and 7508A of this title] may be cited as the ‘Disaster Related Extension of Deadlines Act’.”

Pub. L. 119–39, § 1, Nov. 25, 2025, 139 Stat. 659, provided that: “This Act [amending section 6213 of this title and enacting provisions set out as notes under section 6213 of this title] may be cited as the ‘Internal Revenue Service Math and Taxpayer Help Act’.”

Pub. L. 119–29, § 1, July 24, 2025, 139 Stat. 471, provided that: “This Act [amending section 7508A of this title and enacting provisions set out as a note under section 7508A of this title] may be cited as the ‘Filing Relief for Natural Disasters Act’.”

Short Title of 2024 Amendment

Pub. L. 118–168, § 1, Dec. 23, 2024, 138 Stat. 2586, provided that: “This Act [amending sections 4980H, 6055, 6056, and 6501 of this title and enacting provisions set out as notes under sections 4980H, 6055, and 6501 of this title] may be cited as the ‘Employer Reporting Improvement Act’.”

Pub. L. 118–167, § 1, Dec. 23, 2024, 138 Stat. 2584, provided that: “This Act [amending sections 6055 and 6056 of this title and enacting provisions set out as a note under section 6055 of this title] may be cited as the ‘Paperwork Burden Reduction Act’.”

Pub. L. 118–146, § 1, Dec. 12, 2024, 138 Stat. 1673, provided that: “This Act [amending section 170 of this title and enacting provisions set out as a note under section 170 of this title] may be cited as the ‘VSO Equal Tax Treatment Act’ or as the ‘VETT Act’.”

Pub. L. 118–60, § 1, May 10, 2024, 138 Stat. 1018, provided that: “This Act [amending section 9502 of this title] may be cited as the ‘Airport and Airway Extension Act of 2024, Part II’.”

Pub. L. 118–41, § 1, Mar. 8, 2024, 138 Stat. 20, provided that: “This Act [amending sections 4043, 4081, 4083, 4261, 4271, and 9502 of this title, section 124n of Title 6, Domestic Security, sections 106, 41742, 41743, 44310, 44803, 44807, 44810, 47104, 47107, 47114, 47115, 47141, 47143, 48101 to 48103, and 48105 of Title 49, Transportation, and section 50905 of Title 51, National and Commercial Space Programs, and amending provisions set out as a note preceding section 42301 of Title 49 and provisions set out as notes under sections 40103, 41705, 41731, 42302, 44810, 47102, 47104, and 47141 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2024’.”

Short Title of 2023 Amendment

Pub. L. 118–34, § 1(a), Dec. 26, 2023, 137 Stat. 1112, provided that: “This Act [amending sections 4043, 4081, 4083, 4261, 4271, and 9502 of this title, sections 106, 41742, 41743, 44310, 44803, 44807, 44810, 47104, 47107, 47114, 47115, 47141, 47143, 48101 to 48103, and 48105 of Title 49, Transportation, and section 50905 of Title 51, National and Commercial Space Programs, and amending provisions set out as a note preceding section 42301 of Title 49 and provisions set out as notes under sections 40103, 41705, 41731, 42302, 44810, 47102, 47104, and 47141 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2023, Part II’.”

Short Title of 2022 Amendment

Pub. L. 117–328, div. T, § 1(a), Dec. 29, 2022, 136 Stat. 5275, provided that: “This division [see Tables for classification] may be cited as the ‘SECURE 2.0 Act of 2022’.”

Short Title of 2020 Amendment

Pub. L. 116–260, div. N, title II, § 271(a), Dec. 27, 2020, 134 Stat. 1964, provided that: “This subtitle [subtitle B (§§ 271–288) of title II of div. N of Pub. L. 116–260, see Tables for classification] may be cited as the ‘COVID-related Tax Relief Act of 2020’.”

Pub. L. 116–260, div. EE, § 1(a), Dec. 27, 2020, 134 Stat. 3038, provided that: “This division [see Tables for classification] may be cited as the ‘Taxpayer Certainty and Disaster Tax Relief Act of 2020’.”

Short Title of 2019 Amendment

Pub. L. 116–94, div. O, § 1(a), Dec. 20, 2019, 133 Stat. 3137, provided that: “This Act [div. O of Pub. L. 116–94, see Tables for classification] may be cited as the ‘Setting Every Community Up for Retirement Enhancement Act of 2019’.”

Pub. L. 116–94, div. P, title XIII, § 1301, Dec. 20, 2019, 133 Stat. 3204, provided that: “This title [amending section 4975 of this title and section 1108 of Title 29, Labor, and enacting provisions set out as a note under section 4975 of this title] may be cited as the ‘Temporary Relief from Certain ERISA Requirements Act of 2020’.”

Pub. L. 116–94, div. Q, § 1(a), Dec. 20, 2019, 133 Stat. 3226, provided that: “This division [see Tables for classification] may be cited as the ‘Taxpayer Certainty and Disaster Tax Relief Act of 2019’.”

Pub. L. 116–25, § 1(a), July 1, 2019, 133 Stat. 981, provided that: “This Act [see Tables for classification] may be cited as the ‘Taxpayer First Act’.”

Short Title of 2018 Amendment

Pub. L. 115–250, § 1, Sept. 29, 2018, 132 Stat. 3164, provided that: “This Act [amending section 9502 of this title] may be cited as the ‘Airport and Airway Extension Act of 2018, Part II’.”

Pub. L. 115–141, div. M, title I, § 1, Mar. 23, 2018, 132 Stat. 1046, provided that: “This title [amending sections 4081, 4083, 4261, 4271, and 9502 of this title and sections 106, 41742, 41743, 44506, 47104, 47107, 47115, 47124, 47141, and 48101 to 48103 of Title 49, Transportation, and amending provisions set out as a note preceding section 42301 of Title 49 and provisions set out as notes under sections 41731 and 47141 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2018’.”

Pub. L. 115–141, div. U, § 1(a), Mar. 23, 2018, 132 Stat. 1159, provided that: “This division [see Tables for classification] may be cited as the ‘Tax Technical Corrections Act of 2018’.”

Short Title of 2017 Amendment

Pub. L. 115–63, § 1(a), Sept. 29, 2017, 131 Stat. 1168, provided that: “This Act [amending sections 4081, 4083, 4261, 4271, and 9502 of this title, sections 254c–3, 256h, 256i, and 1395iii of Title 42, The Public Health and Welfare, and sections 106, 41742, 41743, 47104, 47107, 47114, 47115, 47124, 47141, 48101 to 48103, and 48114 of Title 49, Transportation, and amending provisions set out as a note under section 1395l of Title 42, provisions set out as a note preceding section 42301 of Title 49, and provisions set out as notes under sections 41731 and 47141 of Title 49] may be cited as the ‘Disaster Tax Relief and Airport and Airway Extension Act of 2017’.”

Short Title of 2016 Amendment

Pub. L. 114–239, § 1, Oct. 7, 2016, 130 Stat. 973, provided that: “This Act [amending section 74 of this title and enacting provisions set out as a note under section 74 of this title] may be cited as the ‘United States Appreciation for Olympians and Paralympians Act of 2016’.”

Pub. L. 114–184, § 1, June 30, 2016, 130 Stat. 536, provided that: “This Act [amending sections 6103 and 7213 of this title and enacting provisions set out as a note under section 6103 of this title] may be cited as the ‘Recovering Missing Children Act’.”

Pub. L. 114–141, § 1(a), Mar. 30, 2016, 130 Stat. 322, provided that: “This Act [amending sections 4081, 4083, 4261, 4271, and 9502 of this title and sections 106, 41742, 47104, 47107, 47115, 47124, 47141, and 48101 to 48103 of Title 49, Transportation, and amending provisions set out as a note preceding section 42301 of Title 49 and provisions set out as notes under sections 41731 and 47141 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2016’.”

Short Title of 2015 Amendment

Pub. L. 114–113, div. Q, § 1(a), Dec. 18, 2015, 129 Stat. 3040, provided that: “This division [see Tables for classification] may be cited as the ‘Protecting Americans from Tax Hikes Act of 2015’.”

Pub. L. 114–74, § 1(a), Nov. 2, 2015, 129 Stat. 584, provided that: “This Act [see Tables for classification] may be cited as the ‘Bipartisan Budget Act of 2015’.”

Pub. L. 114–55, § 1(a), Sept. 30, 2015, 129 Stat. 522, provided that: “This Act [amending sections 4081, 4083, 4261, 4271, and 9502 of this title, sections 106, 41742, 47104, 47107, 47115, 47124, 47141, 48101 to 48103, and 48114 of Title 49, Transportation, and section 50905 of Title 51, National and Commercial Space Programs, and amending provisions set out as a note preceding section 42301 of Title 49 and provisions set out as notes under sections 41731 and 47141 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2015’.”

Pub. L. 114–26, § 1, June 29, 2015, 129 Stat. 319, provided that: “This Act [probably means sections 1 to 3 of Pub. L. 114–26, see Tables for classification] may be cited as the ‘Defending Public Safety Employees’ Retirement Act’.”

Pub. L. 114–14, § 1, May 22, 2015, 129 Stat. 198, provided that: “This Act [amending section 104 of this title] may be cited as the ‘Don’t Tax Our Fallen Public Safety Heroes Act’.”

Short Title of 2014 Amendment

Pub. L. 113–295, div. A, § 1(a), Dec. 19, 2014, 128 Stat. 4010, provided that: “This division [see Tables for classification] may be cited as the ‘Tax Increase Prevention Act of 2014’.”

Pub. L. 113–295, div. A, title II, § 201, Dec. 19, 2014, 128 Stat. 4024, provided that: “This title [see Tables for classification] may be cited as the ‘Tax Technical Corrections Act of 2014’.”

Pub. L. 113–295, div. B, § 1(a), Dec. 19, 2014, 128 Stat. 4056, provided that: “This division [see Tables for classification] may be cited as the ‘Stephen Beck, Jr., Achieving a Better Life Experience Act of 2014’ or the ‘Stephen Beck, Jr., ABLE Act of 2014’.”

Pub. L. 113–168, § 1, Sept. 26, 2014, 128 Stat. 1883, provided that: “This Act [enacting section 139E of this title and provisions set out as notes under section 139E of this title] may be cited as the ‘Tribal General Welfare Exclusion Act of 2014’.”

Pub. L. 113–94, § 1, Apr. 3, 2014, 128 Stat. 1085, provided that: “This Act [amending sections 9006, 9008, 9009, 9012, and 9037 of this title and sections 282 and 282a of Title 42, The Public Health and Welfare, and enacting provisions set out as a note under section 282a of Title 42] may be cited as the ‘Gabriella Miller Kids First Research Act’.”

Short Title of 2013 Amendment

Pub. L. 112–240, § 1(a), Jan. 2, 2013, 126 Stat. 2313, provided that: “This Act [see Tables for classification] may be cited as the ‘American Taxpayer Relief Act of 2012’.”

Short Title of 2012 Amendment

Pub. L. 112–141, div. D, § 40001, July 6, 2012, 126 Stat. 844, provided that: “This division [see Tables for classification] may be cited as the ‘Highway Investment, Job Creation, and Economic Growth Act of 2012’.”

Pub. L. 112–96, § 1(a), Feb. 22, 2012, 126 Stat. 156, provided that: “This Act [see Tables for classification] may be cited as the ‘Middle Class Tax Relief and Job Creation Act of 2012’.”

Pub. L. 112–96, title II, § 2001, Feb. 22, 2012, 126 Stat. 159, provided that: “This title [enacting sections 505 and 1111 of Title 42, The Public Health and Welfare, amending sections 3304 and 3306 of this title, section 503 of Title 42, and section 352 of Title 45, Railroads, enacting provisions set out as notes under this section, sections 3304 and 3306 of this title, and sections 503 and 1111 of Title 42, amending provisions set out as notes under section 3304 of this title, and repealing provisions set out as a note under section 3304 of this title] may be cited as the ‘Extended Benefits, Reemployment, and Program Integrity Improvement Act’.”

Pub. L. 112–96, title II, § 2121, Feb. 22, 2012, 126 Stat. 163, provided that: “This subtitle [subtitle B (§§ 2121–2124) of title II of Pub. L. 112–96, amending section 352 of Title 45, Railroads, and enacting and amending provisions set out as notes under section 3304 of this title] may be cited as the ‘Unemployment Benefits Extension Act of 2012’.”

Pub. L. 112–96, title II, § 2160, Feb. 22, 2012, 126 Stat. 171, provided that: “This subtitle [subtitle D (§§ 2160–2166) of title II of Pub. L. 112–96, amending sections 3304 and 3306 of this title and section 503 of Title 42, The Public Health and Welfare, enacting provisions set out as notes under sections 3304 and 3306 of this title, and repealing provisions set out as a note under section 3304 of this title] may be cited as the ‘Layoff Prevention Act of 2012’.”

Pub. L. 112–91, § 1, Jan. 31, 2012, 126 Stat. 3, provided that: “This Act [amending sections 4081, 4261, 4271, and 9502 of this title and sections 106, 40117, 41742, 41743, 44302, 44303, 47104, 47107, 47115, 47141, 48101 to 48103, and 49108 of Title 49, Transportation, enacting provisions set out as notes under sections 4081 and 9502 of this title, and amending provisions set out as notes under sections 41731 and 47109 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2012’.”

Short Title of 2011 Amendment

Pub. L. 112–78, § 1(a), Dec. 23, 2011, 125 Stat. 1280, provided that: “This Act [enacting section 4547 of Title 12, Banks and Banking, amending section 645 of Title 2, The Congress, section 1709 of Title 12, sections 1395l, 1395m, 1395w–4, 1396a, 1396r–6, and 1396u–3 of Title 42, The Public Health and Welfare, and section 352 of Title 45, Railroads, enacting provisions set out as notes under sections 1401 and 3304 of this title, section 1709 of Title 12, and section 1395ww of Title 42, and amending provisions set out as notes under sections 1401 and 3304 of this title and sections 1395m, 1395w–4, and 1395ww of Title 42] may be cited as the ‘Temporary Payroll Tax Cut Continuation Act of 2011’.”

Pub. L. 112–56, title I, § 101, Nov. 21, 2011, 125 Stat. 712, provided that: “This title [amending section 3402 of this title and enacting provisions set out as a note under section 3402 of this title] may be cited as the ‘3% Withholding Repeal and Job Creation Act’.”

Pub. L. 112–30, title II, § 201, Sept. 16, 2011, 125 Stat. 357, provided that: “This title [amending sections 4081, 4261, 4271 and 9502 of this title and sections 106, 40117, 41742, 41743, 44302, 44303, 47104, 47107, 47115, 47141, 48101 to 48103, and 49108 of Title 49, Transportation, enacting provisions set out as notes under sections 4081 and 9502 of this title, and amending provisions set out as notes under section 41731 and 47109 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2011, Part V’.”

Pub. L. 112–27, § 1, Aug. 5, 2011, 125 Stat. 270, provided that: “This Act [amending sections 4081, 4261, 4271 and 9502 of this title and sections 40117, 41731, 44302, 44303, 47104, 47107, 47115, 47141, 48103, and 49108 of Title 49, Transportation, enacting provisions set out as notes under sections 4081 and 9502 of this title and section 40117 of Title 49, and amending provisions set out as a note under section 47109 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2011, Part IV’.”

Pub. L. 112–21, § 1, June 29, 2011, 125 Stat. 233, provided that: “This Act [amending sections 4081, 4261, 4271 and 9502 of this title and sections 40117, 44302, 44303, 47104, 47107, 47115, 47141, 48103, and 49108 of Title 49, Transportation, enacting provisions set out as notes under sections 4081 and 9502 of this title and section 40117 of Title 49, and amending provisions set out as a note under section 47109 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2011, Part III’.”

Pub. L. 112–16, § 1, May 31, 2011, 125 Stat. 218, provided that: “This Act [amending sections 4081, 4261, 4271, and 9502 of this title and sections 40117, 44302, 44303, 47104, 47107, 47115, 47141, 48103, and 49108 of Title 49, Transportation, enacting provisions set out as notes under sections 4081 and 9502 of this title and section 40117 of Title 49, and amending provisions set out as a note under section 47109 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2011, Part II’.”

Pub. L. 112–9, § 1, Apr. 14, 2011, 125 Stat. 36, provided that: “This Act [amending sections 36B and 6041 of this title and enacting provisions set out as notes under sections 36B and 6041 of this title] may be cited as the ‘Comprehensive 1099 Taxpayer Protection and Repayment of Exchange Subsidy Overpayments Act of 2011’.”

Pub. L. 112–7, § 1, Mar. 31, 2011, 125 Stat. 31, provided that: “This Act [amending sections 4081, 4261, 4271 and 9502 of this title and sections 40117, 44302, 44303, 47104, 47107, 47115, 47141, 48103, and 49108 of Title 49, Transportation, enacting provisions set out as notes under sections 4081 and 9502 of this title and section 40117 of Title 49, and amending provisions set out as a note under section 47109 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2011’.”

Short Title of 2010 Amendment

Pub. L. 111–329, § 1, Dec. 22, 2010, 124 Stat. 3566, provided that: “This Act [amending sections 4081, 4261, 4271, and 9502 of this title and sections 40117, 44302, 44303, 47104, 47107, 47115, 47141, 48103, and 49108 of Title 49, Transportation, enacting provisions set out as notes under sections 4081 and 9502 of this title and section 40117 of Title 49, and amending provisions set out as a note under section 47109 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2010, Part IV’.”

Pub. L. 111–325, § 1(a), Dec. 22, 2010, 124 Stat. 3537, provided that: “This Act [amending sections 267, 302, 316, 562, 851, 852, 853, 853A, 854, 855, 860, 871, 1212, and 4982 of this title, repealing section 6697 of this title, and enacting provisions set out as notes under sections 267, 316, 562, 851, 852, 854, 855, 860, 1212, and 4982 of this title] may be cited as the ‘Regulated Investment Company Modernization Act of 2010’.”

Pub. L. 111–312, § 1(a), Dec. 17, 2010, 124 Stat. 3296, provided that: “This Act [see Tables for classification] may be cited as the ‘Tax Relief, Unemployment Insurance Reauthorization, and Job Creation Act of 2010’.”

Pub. L. 111–249, § 1, Sept. 30, 2010, 124 Stat. 2627, provided that: “This Act [amending sections 4081, 4261, 4271, and 9502 of this title and sections 1135, 40117, 41743, 44302, 44303, 44703, 47104, 47107, 47115, 47141, 48103, and 49108 of Title 49, Transportation, enacting provisions set out as notes under sections 4081 and 9502 of this title and sections 1135 and 40117 of Title 49, and amending provisions set out as notes under sections 41731, 44701, and 47109 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2010, Part III’.”

Pub. L. 111–240, title II, § 2001, Sept. 27, 2010, 124 Stat. 2553, provided that: “This title [amending sections 38 to 40, 55, 72, 162, 168, 179, 195, 280F, 402A, 460, 861, 862, 864, 1202, 1374, 1400L, 1400N, 6041, 6330, 6707A, 6721, and 6722 of this title and enacting provisions set out as notes under sections 38 to 40, 72, 162, 168, 179, 195, 280F, 402A, 460, 861, 1202, 1374, 6041, 6330, 6655, 6662A, 6707A, and 6721 of this title] may be cited as the ‘Creating Small Business Jobs Act of 2010’.”

Pub. L. 111–237, § 1, Aug. 16, 2010, 124 Stat. 2497, provided that: “This Act [amending sections 6201, 6213, 6302, and 6501 of this title and enacting provisions set out as notes under sections 6201, 6302, and 6655 of this title] may be cited as the ‘Firearms Excise Tax Improvement Act of 2010’.”

Pub. L. 111–226, § 1, Aug. 10, 2010, 124 Stat. 2389, provided that: “This Act [enacting section 909 of this title, amending sections 32, 304, 861, 864, 871, 901, 904, 960, 2104, 6012, 6051, 6302, and 6501 of this title and section 1396r–8 of Title 42, The Public Health and Welfare, repealing section 3507 of this title, enacting provisions set out as notes under sections 32, 304, 861, 864, 901, 904, 909, 960, and 6501 of this title and section 1396r–8 of Title 42, and amending provisions set out as a note under section 1396d of Title 42] may be cited as the ‘_Act of_’. [sic]”

Pub. L. 111–205, § 1, July 22, 2010, 124 Stat. 2236, provided that: “This Act [enacting and amending provisions set out as notes under section 3304 of this title] may be cited as the ‘Unemployment Compensation Extension Act of 2010’.”

Pub. L. 111–198, § 1, July 2, 2010, 124 Stat. 1356, provided that: “This Act [amending sections 36, 6103, and 6657 of this title, section 1187 of Title 8, Aliens and Nationality, and section 2131 of Title 22, Foreign Relations and Intercourse, and enacting provisions set out as notes under sections 36, 6103, and 6657 of this title] may be cited as the ‘Homebuyer Assistance and Improvement Act of 2010’.”

Pub. L. 111–197, § 1, July 2, 2010, 124 Stat. 1353, provided that: “This Act [amending sections 4081, 4261, 4271, and 9502 of this title and sections 106, 40117, 44302, 44303, 47104, 47107, 47115, 47141, 48101 to 48103, and 49108 of Title 49, Transportation, enacting provisions set out as notes under sections 4081 and 9502 of this title and section 40117 of Title 49, and amending provisions set out as a note under section 47109 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2010, Part II’.”

Pub. L. 111–161, § 1, Apr. 30, 2010, 124 Stat. 1126, provided that: “This Act [amending sections 4081, 4261, 4271, and 9502 of this title and sections 106, 40117, 44302, 44303, 47104, 47107, 47115, 47141, 48101 to 48103, and 49108 of Title 49, Transportation, enacting provisions set out as notes under sections 4081 and 9502 of this title and section 40117 of Title 49, and amending provisions set out as a note under section 47109 of Title 49] may be cited as the ‘Airport and Airway Extension Act of 2010’.”

Pub. L. 111–159, § 1, Apr. 26, 2010, 124 Stat. 1123, provided that: “This Act [amending section 5000A of this title and enacting provisions set out as a note under section 5000A of this title] may be cited as the ‘TRICARE Affirmation Act’.”

Pub. L. 111–157, § 1, Apr. 15, 2010, 124 Stat. 1116, provided that: “This Act [amending section 119 of Title 17, Copyrights, sections 1395w–4 and 1396b of Title 42, The Public Health and Welfare, and section 325 of Title 47, Telecommunications, enacting provisions set out as notes under sections 3304 and 6432 of this title and section 1395w–4 of Title 42, and amending provisions set out as notes under sections 3304 and 6432 of this title and section 119 of Title 17] may be cited as the ‘Continuing Extension Act of 2010’.”

Pub. L. 111–153, § 1, Mar. 31, 2010, 124 Stat. 1084, provided that: “This Act [amending sections 4081, 4261, 4271, and 9502 of this title and sections 106, 40117, 44302, 44303, 47104, 47107, 47115, 47141, 48101 to 48103, and 49108 of Title 49, Transportation, enacting provisions set out as notes under sections 4081 and 9502 of this title and section 40117 of Title 49, and amending provisions set out as a note under section 47109 of Title 49] may be cited as the ‘Federal Aviation Administration Extension Act of 2010’.”

Pub. L. 111–147, § 1(a), Mar. 18, 2010, 124 Stat. 71, provided that: “This Act [enacting chapter 4 and section 6038D of this title, amending sections 51, 54F, 149, 163, 165, 179, 643, 679, 864, 871, 881, 1287, 1291, 1298, 3111, 3221, 4701, 6011, 6048, 6229, 6414, 6431, 6501, 6513, 6611, 6662, 6677, 6724, and 9502 to 9504 of this title, section 777c of Title 16, Conservation, sections 405 and 410 of Title 23, Highways, section 3121 of Title 31, Money and Finance, and sections 5305, 5307, 5309, 5311, 5337, 5338, 31104, and 31144 of Title 49, Transportation, enacting provisions set out as notes under sections 38, 51, 54F, 149, 179, 643, 679, 864, 871, 1291, 6011, 6038D, 6048, 6229, 6431, 6655, 6662, 6677, 9502, and 9503 of this title and section 101 of Title 23, and amending provisions set out as notes under section 901 of Title 2, The Congress, sections 402, 403, and 405 of Title 23, and sections 5309, 5310, 5338, 14710, 31100, 31301, and 31309 of Title 49] may be cited as the ‘Hiring Incentives to Restore Employment Act’.”

Pub. L. 111–144, § 1, Mar. 2, 2010, 124 Stat. 42, provided that: “This Act [amending sections 35, 139C, 6432, and 6720C of this title, section 119 of Title 17, Copyrights, sections 1395l and 1395w–4 of Title 42, The Public Health and Welfare, and section 325 of Title 47, Telecommunications, enacting provisions set out as a note under section 6432 of this title, and amending provisions set out as notes under sections 3304 and 6432 of this title and section 119 of Title 17] may be cited as the ‘Temporary Extension Act of 2010’.”

Short Title of 2009 Amendment