Except as provided in subsection (b), gross income does not include interest on any State or local bond.

Subsection (a) shall not apply to—

(1) Private activity bond which is not a qualified bond Any private activity bond which is not a qualified bond (within the meaning of section 141).

(2) Arbitrage bond Any arbitrage bond (within the meaning of section 148).

(3) Bond not in registered form, etc. Any bond unless such bond meets the applicable requirements of section 149.

For purposes of this section and part IV—

(1) State or local bond The term “State or local bond” means an obligation of a State or political subdivision thereof.

(2) State The term “State” includes the District of Columbia and any possession of the United States.

(Aug. 16, 1954, ch. 736, 68A Stat. 29; Pub. L. 90–364, title I, § 107(a), June 28, 1968, 82 Stat. 266; Pub. L. 90–634, title IV, § 401(a), Oct. 24, 1968, 82 Stat. 1349; Pub. L. 91–172, title VI, § 601(a), Dec. 30, 1969, 83 Stat. 656; Pub. L. 92–178, title III, § 315(a), (b), Dec. 10, 1971, 85 Stat. 529; Pub. L. 94–164, § 7(a), Dec. 23, 1975, 89 Stat. 976; Pub. L. 94–182, title III, § 301(a), Dec. 31, 1975, 89 Stat. 1056; Pub. L. 94–455, title XIX, §§ 1901(a)(17), (b)(8)(B), 1906(b)(13)(A), title XXI, §§ 2105(a)–(c), 2137(d), Oct. 4, 1976, 90 Stat. 1765, 1766, 1794, 1834, 1902, 1931; Pub. L. 95–339, title II, § 201(a), Aug. 8, 1978, 92 Stat. 467; Pub. L. 95–600, title III, §§ 331(a), (b), 332(a), 333(a), 334(a), (b), title VII, § 703(j)(1), (q)(1), Nov. 6, 1978, 92 Stat. 2839–2841, 2941, 2944; Pub. L. 96–222, title I, § 107(a)(3)(C), Apr. 1, 1980, 94 Stat. 223; Pub. L. 96–223, title II, §§ 241(a), 242(a), 244(a), Apr. 2, 1980, 94 Stat. 281, 283, 286; Pub. L. 96–499, title XI, § 1103, Dec. 5, 1980, 94 Stat. 2669; Pub. L. 97–34, title VIII, §§ 811(a), (b), 812(a), Aug. 13, 1981, 95 Stat. 349, 350; Pub. L. 97–248, title II, §§ 214(a)–(e), 215(a), (b), 217(a)–(d), 219(a), 221(a), (b), (c)(1), title III, § 310(b)(1), (c)(1), (2), Sept. 3, 1982, 96 Stat. 466–469, 472–474, 477, 478, 596, 599; Pub. L. 97–424, title V, § 547(a), Jan. 6, 1983, 96 Stat. 2199; Pub. L. 97–473, title II, § 202(b)(2), Jan. 14, 1983, 96 Stat. 2609; Pub. L. 98–369, div. A, title IV, § 474(r)(4), title VI, §§ 621–624(a), (b)(2), (3), 626(a), 627, 628(a), (c)–(e), (g), 630, July 18, 1984, 98 Stat. 839, 915–922, 924, 926, 928, 931–933; Pub. L. 99–272, title XIII, § 13209(e), Apr. 7, 1986, 100 Stat. 323; Pub. L. 99–514, title XIII, § 1301(a), title XVIII, §§ 1864(a)(1), (b)–(e), 1865(a), 1869(a), (b), 1870, 1871(a)(1), (b), 1899A(2)–(4), Oct. 22, 1986, 100 Stat. 2602, 2885, 2886, 2888, 2890, 2891, 2958; Pub. L. 100–647, title I, § 1013(a)(34)(A), (c)(12)(A), Nov. 10, 1988, 102 Stat. 3544, 3547.)