; (ii) for the conduct of clean energy programs in the State; and (iii) to carry out activities to reduce the amount of electricity bills for households in the State below 300 percent of the poverty line (as defined in section 673 of the Community Services Block Grant Act ( 42 U.S.C. 9902 )). (B) Action by States A State that receives funds under this paragraph shall maintain such records and evidence of compliance as the Secretary may require. (4) Guidelines and criteria (A) Buy American compliance The funds made available under the program established under this subsection shall not be used for a project unless the project achieves compliance with all applicable requirements of chapter 83 of title 41, United States Code (formerly known as the Buy American Act ). (B) Davis-Bacon compliance (i) In general All laborers and mechanics employed on projects funded directly, or assisted in whole or in part, by this section shall be paid wages at rates not less than those prevailing on projects of a character similar in the locality as determined by the Secretary of Labor in accordance with subchapter IV of chapter 31 of part A of subtitle II of title 40, United States Code (commonly referred to as the Davis-Bacon Act ). (ii) Authority With respect to the labor standards specified in this subparagraph, the Secretary of Labor shall have the authority and functions set forth in Reorganization Plan Numbered 14 of 1950 (64 Stat. 1267; 5 U.S.C. App.) and section 3145 of title 40, United States Code. (C) Additional guidelines and criteria The Secretary may issue such additional guidelines and criteria for the program under this subsection as the Secretary determines to be appropriate. (k) State programs (1) Savings provision (A) In general Subject to subparagraph (B), nothing in this section affects the authority of a State or a political subdivision of a State to adopt or enforce any law or regulation relating to— (i) clean or renewable energy