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42 U.S.C. 7401 et seq.
37 FR 10846, May 31, 1972, unless otherwise noted.
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Nomenclature changes to part 52 appear at 81 FR 74586, Oct. 26, 2016.
For purposes of the SIP revisions required by § 51.120, EPA may make a finding under section 179(a) (1)-(4) of the Clean Air Act, 42 U.S.C. 7509(a) (1)-(4), starting the sanctions process set forth in section 179(a) of the Clean Air Act. Any such finding will be deemed a finding under § 52.31(c) and sanctions will be imposed in accordance with the order of sanctions and the terms for such sanctions established in § 52.31.
[60 FR 4737, Jan. 24, 1995]