; or (B) to revoke primary enforcement responsibility in accordance with that Act ( 42 U.S.C. 300f et seq. ). (3) Applicability to new submissions The amendments made by this section shall apply to all applications under paragraph (1)(A) of subsection (b) of section 1422 of the Safe Drinking Water Act ( 42 U.S.C. 300h–1 ) and notices under paragraph (1)(B) of that subsection for underground injection control programs of States, or portions of underground injection control programs of States, that regulate Class VI wells submitted to the Administrator pursuant to that section on and after the date of enactment of this Act. (4) Applicability to prior submissions With respect to applications under paragraph (1)(A) of section 1422(b) of the Safe Drinking Water Act ( 42 U.S.C. 300h–1(b) ) and notices under paragraph (1)(B) of that section for underground injection control programs, or portions of underground injection control programs, that regulate Class VI wells that were submitted to the Administrator, but not approved, before the date of enactment of this Act— (A) the 180-day period described in paragraph (2)(B)(ii) of that section shall begin on the date of enactment of this Act; and (B) the Administrator shall process and make decisions, pursuant to the requirements of this Act and the amendments made by this Act, on those applications and notices in the order in which the applications and notices were submitted.