; and (B) any funding necessary to promptly carry out the requirements of the amendments made by section 2(a) of the Primacy Certainty Act of 2023 . . (b) Use of IIJA funds (1) Use for report Amounts made available to carry out section 40306(b) of the Infrastructure Investment and Jobs Act ( 42 U.S.C. 300h–9(b) ) may, beginning on the date of enactment of this Act, be used to carry out paragraph (6) of section 1422(b) of the Safe Drinking Water Act ( 42 U.S.C. 300h–1(b) ). (2) Conforming amendment Section 40306(b) of the Infrastructure Investment and Jobs Act ( 42 U.S.C. 300h–9(b) ) is amended by inserting (including carrying out paragraph (6) of section 1422(b) of the Safe Drinking Water Act ( 42 U.S.C. 300h–1(b) ) in accordance with section 2(b)(1) of the Primacy Certainty Act of 2023 ) after 2010)) . (c) Rules of construction (1) Definitions In this subsection: (A) Administrator The term Administrator means the Administrator of the Environmental Protection Agency. (B) Class VI well The term Class VI well has the meaning given the term in section 40306(a) of the Infrastructure Investment and Jobs Act ( 42 U.S.C. 300h–9(a) ). (2) Ability to deny or withdraw state primary enforcement responsibility Nothing in the amendments made by this section limits the ability of the Administrator— (A) to deny an application under paragraph (1)(A) of subsection (b) of section 1422 of the Safe Drinking Water Act ( 42 U.S.C. 300h–1 ) or notice under paragraph (1)(B) of that subsection of a State to operate an underground injection control program to regulate Class VI wells