; (bb) accidentally; or (cc) otherwise; and (II) from any source, whether single or multiple; and (ii) as assessed based on the combined past, present, and reasonably foreseeable emissions and discharges affecting the geographical area; and (B) evaluated taking into account sensitive populations and socioeconomic factors, where applicable. . (2) Permit programs Section 502(b) of the Clean Air Act ( 42 U.S.C. 7661a(b) ) is amended— (A) in paragraph (5)— (i) in subparagraphs (A) and (C), by striking assure each place it appears and inserting ensure ; and (ii) by striking subparagraph (F) and inserting the following: (F) ensure that no permit will be issued or renewed, as applicable, if— (i) with respect to an application for a permit or renewal of a permit for a major source, the permitting authority determines under paragraph (9)(A)(i)(II)(bb) that the terms and conditions of the permit or renewal would not be sufficient to ensure a reasonable certainty of no harm to the health of the general population, or to any potentially exposed or susceptible subpopulation, of the applicable census tracts or Tribal census tracts (as those terms are defined by the Director of the Bureau of the Census); or (ii) the Administrator objects to the issuance of the permit in a timely manner under this title. ; and (B) in paragraph (9)— (i) in the fourth sentence, by striking Such permit revision and inserting the following: (iii) Treatment as renewal A permit revision under this paragraph ; (ii) in the third sentence, by striking No such revision shall and inserting the following: (ii) Exception A revision under this paragraph shall not ; (iii) in the second sentence, by striking Such revisions and inserting the following: (B) Revision requirements (i) Deadline A revision described in subparagraph (A)(ii)