; and (16) an identification of, and recommendations for, best practices for data types, data sources, and methodologies for accurately measuring, modeling, and tracking the environmental impacts of crypto-asset mining operations in the United States in the future. (c) Public Comment Before conducting the study required by subsection (a), the Administrator shall provide an opportunity for public comment and advice relevant to conducting the study. (d) Report to Congress Not later than 18 months after the date of enactment of this Act, the Administrator shall submit to the Committees on Energy and Commerce and Science, Space, and Technology of the House of Representatives and the Committees on Environment and Public Works and Energy and Natural Resources of the Senate, and publish on the public websites of the Environmental Protection Agency and the Department of Energy, a report that contains the results of the study required by subsection (a). (e) Authorization of Appropriations There is authorized to be appropriated to the Administrator to carry out this section $5,000,000 for fiscal year 2023, to remain available until expended. 5. Energy efficiency of data center buildings Section 453(a)(1) of the Energy Independence and Security Act of 2007 ( 42 U.S.C. 17112(a)(1) ) is amended— (1) in subparagraph (A), by striking ‘‘or’’ at the end after the semicolon; (2) in subparagraph (B), by striking the period at the end and inserting ‘‘; or’’; and (3) by adding at the end the following: (C) a facility in which 2 or more computers perform logical operations to mine or create crypto-asset (as defined in section 2 of the Crypto-Asset Environmental Transparency Act of 2023 ). .