For purposes of section 38, the amount of the investment credit determined under this section for any taxable year shall be the sum of—

(1) the rehabilitation credit,

(2) the energy credit,

(3) the qualifying advanced coal project credit,

(4) the qualifying gasification project credit,

(5) the qualifying advanced energy project credit, and

(6) the qualifying therapeutic discovery project credit.

(Added Pub. L. 87–834, § 2(b), Oct. 16, 1962, 76 Stat. 963; amended Pub. L. 88–272, title II, § 201(d)(4), Feb. 26, 1964, 78 Stat. 32; Pub. L. 89–384, § 1(c)(1), Apr. 8, 1966, 80 Stat. 102; Pub. L. 89–389, § 2(b)(5), Apr. 14, 1966, 80 Stat. 114; Pub. L. 89–800, § 3, Nov. 8, 1966, 80 Stat. 1514; Pub. L. 90–225, § 2(a), Dec. 27, 1967, 81 Stat. 731; Pub. L. 91–172, title III, § 301(b)(4), title IV, § 401(e)(1), title VII, § 703(b), Dec. 30, 1969, 83 Stat. 585, 603, 666; Pub. L. 92–178, title I, §§ 102(a)(1), (b), 105(a)–(c), 106(a)–(c), 107(a)(1), 108(a), Dec. 10, 1971, 85 Stat. 499, 503, 506, 507; Pub. L. 93–406, title II, §§ 2001(g)(2)(B), 2002(g)(2), 2005(c)(4), Sept. 2, 1974, 88 Stat. 957, 968, 991; Pub. L. 94–12, title III, § 301(a), (b)(1)–(3), 302(a), (b)(1), Mar. 29, 1975, 89 Stat. 36, 37, 40, 43; Pub. L. 94–455, title V, § 503(b)(4), title VIII, §§ 802(a), (b)(1)–(5), 803(a), (b)(1), 805(a), title XVI, § 1607(b)(1)(B), title XVII, §§ 1701(b), 1703, title XIX, §§ 1901(a)(4), (b)(1)(C), 1906(b)(13)(A), title XXI, § 2112(a)(2), Oct. 4, 1976, 90 Stat. 1562, 1580–1583, 1596, 1756, 1759, 1761, 1764, 1790, 1834, 1905; Pub. L. 95–600, title I, § 141(e), (f)(2), title III, §§ 311(a), (c), 312(a), (b), (c)(2), 313(a), 316(a), (b)(1), (2), title VII, § 703(a)(1), (2), (j)(9), Nov. 6, 1978, 92 Stat. 2794, 2795, 2824–2826, 2829, 2939, 2941; Pub. L. 95–618, title II, § 241(a), title III, § 301(a), (c)(1), Nov. 9, 1978, 92 Stat. 3192, 3194, 3199; Pub. L. 96–222, title I, §§ 101(a)(7)(A), (L)(iii)(I), (v)(I), (M)(i), 103(a)(2)(A), (B)(i)–(iii), (3), (4)(A), 107(a)(3)(A), Apr. 1, 1980, 94 Stat. 197, 200, 201, 208, 209, 223; Pub. L. 96–223, title II, §§ 221(a), 222(e)(2), 223(b)(1), Apr. 2, 1980, 94 Stat. 260, 263, 266; Pub. L. 97–34, title II, §§ 207(c)(1), 211(a)(1), (b), (d), (e)(1), (2), (f)(1), 212(a)(1), (2), title III, §§ 302(c)(3), (d)(1), 332(a), Aug. 13, 1981, 95 Stat. 225, 227–229, 235, 236, 272, 274, 296; Pub. L. 97–248, title II, § 201(d)(8)(A), formerly § 201(c)(8)(A), §§ 205(b), 265(b)(2)(A)(i), Sept. 3, 1982, 96 Stat. 420, 430, 547, renumbered § 201(d)(8)(A), Pub. L. 97–448, title III, § 306(a)(1)(A)(i), Jan. 12, 1983, 96 Stat. 2400; Pub. L. 97–354, § 5(a)(4)–(6), Oct. 19, 1982, 96 Stat. 1692; Pub. L. 97–424, title V, §§ 541(b), 546(b), Jan. 6, 1983, 96 Stat. 2192, 2199; Pub. L. 97–448, title I, § 102(e)(1), (f)(5), title II, § 202(f), Jan. 12, 1983, 96 Stat. 2370, 2372, 2396; Pub. L. 98–21, title I, § 122(c)(1), Apr. 20, 1983, 97 Stat. 87; Pub. L. 98–369, div. A, title I, §§ 16(a), 31(f), 113(b)(2)(B), title IV, §§ 431(a), (b)(1), (d)(1)–(3), 474(o)(1)–(7), title VII, § 713(c)(1)(C), July 18, 1984, 98 Stat. 505, 521, 637, 805, 807, 810, 834–836, 957; Pub. L. 99–514, title II, §§ 201(d)(7)(B), 251(a), title IV, § 421(a), (b), title XVIII, §§ 1802(a)(6), (8), 1844(a), (b)(3), (5), 1847(b)(11), 1848(a), Oct. 22, 1986, 100 Stat. 2141, 2183, 2229, 2789, 2855, 2857; Pub. L. 100–647, title I, §§ 1002(a)(4), (15), (17), (25), 1009(a)(1), 1013(a)(44), title IV, § 4006, Nov. 10, 1988, 102 Stat. 3353, 3355, 3356, 3445, 3545, 3652; Pub. L. 101–239, title VII, §§ 7106, 7814(d), Dec. 19, 1989, 103 Stat. 2306, 2413; Pub. L. 101–508, title XI, §§ 11406, 11813(a), Nov. 5, 1990, 104 Stat. 1388–474, 1388–536; Pub. L. 108–357, title III, § 322(d)(1), Oct. 22, 2004, 118 Stat. 1475; Pub. L. 109–58, title XIII, § 1307(a), Aug. 8, 2005, 119 Stat. 999; Pub. L. 111–5, div. B, title I, § 1302(a), Feb. 17, 2009, 123 Stat. 345; Pub. L. 111–148, title IX, § 9023(b), Mar. 23, 2010, 124 Stat. 880; Pub. L. 113–295, div. A, title II, § 220(c), Dec. 19, 2014, 128 Stat. 4035.)