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40 C.F.R. § 63.840
Cited by 1 regulation in release Current.
(1) Approval of alternatives to the requirements in §§ 63.840, 63.843 (with the exception of 63.843(b)(3)), 63.844, 63.845(a) introductory text, (a)(1), (b) through (e), (h), 63.846(a) through (c), and 63.847(a)(1) and (4).