required by section 9901(b)(3)(A) of the Internal Revenue Code of 1986, that total greenhouse gas emissions from sources subject to taxation under sections 9901 through 9903 of such Code during the period of calendar years 2025 through 2032 exceed the emission level specified in section 9901(b)(3)(A) of such Code for calendar year 2032, then beginning on October 1, 2033, subsections (a) and (b) shall cease to apply. . (b) New motor vehicles and new motor vehicle engines Section 202(b) of the Clean Air Act ( 42 U.S.C. 7521(b) ) is amended— (1) by redesignating the second paragraph (3) (as redesignated by section 230(4)(C) of Public Law 101–549 (104 Stat. 2529)) as paragraph (4)