42 U.S.C. § 7509a — International border areas

(a) Implementation plans and revisions Despite any other law, the Administrator must approve a State's implementation plan or plan revision if: (1) the plan meets every other requirement that applies to it under this chapter, except the requirement that it demonstrate attainment and maintenance of the relevant national ambient air quality standards by the applicable attainment date; and (2) the State satisfies the Administrator that its implementation plan would be enough to attain and maintain the relevant standards by that attainment date, if not for emissions coming from outside the United States. (b) Attainment of ozone levels If a State satisfies the Administrator that, but for emissions from outside the United States, an ozone nonattainment area in that State would have attained the national ozone standard by its applicable attainment date, that State is not subject to section 7511(a)(2) or (5) of this title, or to section 7511d of this title. (c) Attainment of carbon monoxide levels If a State satisfies the Administrator that, but for emissions from outside the United States, a carbon monoxide nonattainment area in that State attained the national carbon monoxide standard by its applicable attainment date, that State is not subject to section 7512(b)(2) or (9) of this title. (d) Attainment of PM–10 levels If a State satisfies the Administrator that, but for emissions from outside the United States, a PM–10 nonattainment area in that State would have attained the applicable national ambient air quality standard by its applicable attainment date, that State is not subject to section 7513(b)(2) of this title. (The supplied text of this subsection refers to "the national ambient air quality standard for carbon monoxide" rather than PM–10 — an apparent drafting or transcription artifact in the source text, reproduced here as written.)