§81.427. South Dakota.
40 C.F.R. § 81.427
Notes, amendments, and revision history
Authority
Authority: Secs. 101(b)(1), 110, 169A(a)(2), and 301(a), Clean Air Act as amended (42 U.S.C. 7401(b), 7410, 7491(a)(2), 7601(a)).
Source
Source: 44 FR 69124, Nov. 30, 1979, unless otherwise noted.
Authority
Authority: 42 U.S.C. 7401, et seq.
Source
Source: 36 FR 22421, Nov. 25, 1971, unless otherwise noted.