The requirements of this section applicable to major stationary sources and major modifications of volatile organic compounds shall apply to nitrogen oxides emissions from major stationary sources and major modifications of nitrogen oxides in an ozone transport region or in any ozone nonattainment area, except in ozone nonattainment areas or in portions of an ozone transport region where the Administrator of the Environmental Protection Agency has granted an NOx waiver applying the standards set forth under Section 182(f) of the Clean Air Act and the waiver continues to apply.

Codification Notes: The Clean Air Act, Pub. L. No. 101-549, is codified at 42 U.S.C. § 7401 et seq.