In accordance with the policy of section
7401(b)(1) of this title, each applicable implementation plan shall contain emission limitations and such other measures as may be necessary, as determined under regulations promulgated under this part, to prevent significant deterioration of air quality in each region (or portion thereof) designated pursuant to section
7407 of this title as attainment or unclassifiable.
1990—Pub. L. 101–549substituted “designated pursuant to section
7407 of this title as attainment or unclassifiable” for “identified pursuant to section
7407(d)(1)(D) or (E) of this title”.
The table below lists the classification updates, since Jan. 3, 2012, for this section. Updates to a broader range of sections may be found at the update page for containing chapter, title, etc.
The most recent Classification Table update that we have noticed was Tuesday, August 13, 2013
An empty table indicates that we see no relevant changes listed in the classification tables. If you suspect that our system may be missing something, please double-check with the Office of the Law Revision Counsel.