Motion of U.S. Department of Energy, et al. for an extension of time submitted.

Brief amici curiae of National Apartment Association, et al. filed.

Brief amici curiae of Heating, Air-Conditioning & Refrigeration Distributors International, et al. filed.

Brief amici curiae of National Association of Home Builders of The United States, et al. filed.

Brief amicus curiae of WM Technologies, LLC filed.

Brief amicus curiae of Chamber of Commerce of The United States of America filed.

Brief amicus curiae of United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry filed.

Brief amicus curiae of GPA Midstream Association filed.

Brief amici curiae of Duravent Group, et al. filed.

Brief amici curiae of West Virginia, et al. filed.

Brief amicus curiae of Competitive Enterprise Institute filed.

Motion to extend the time to file a response is granted and the time is extended to and including April 24, 2026, for all respondents.

Motion to extend the time to file a response from February 23, 2026 to April 24, 2026, submitted to The Clerk.

Petition for a writ of certiorari filed. (Response due February 23, 2026)

American Gas Association, et al., Petitioner, represented by Scott A. Keller

Sierra Club, Consumer Federation of America, and Massachusetts Union of Public Housing Tenants, Respondent, represented by Caroline Anne Flynn

U.S. Department of Energy, et al., Respondent, represented by D. John Sauer

Chamber of Commerce of the United States of America, Amicus Curiae, represented by Jeremy Charles Marwell

Competitive Enterprise Institute, Amicus Curiae, represented by Ondray Toney Harris

Duravent Group and Metal-Fab Inc., Amicus Curiae, represented by Robert Morris Riley

GPA Midstream Association, Amicus Curiae, represented by Francesca Iovino

Heating, Air-Conditioning & Refrigeration Distributors International, Plumbing-Heating-Cooling Contractors—National Association, and Natural Gas Association of Georgia, Amicus Curiae, represented by Brian Christopher Baran

NATIONAL APARTMENT ASSOCIATION, NATIONAL MULTIFAMILY HOUSING COUNCIL, AND MANUFACTURED HOUSING INSTITUTE, Amicus Curiae, represented by Jonathan Mark Little

National Association of Home Builders of the United States and National Association of Realtors, Amicus Curiae, represented by Mackenzie Anne Payne

State of West Virginia, Amicus Curiae, represented by Christopher Dale Pence

United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, AFL-CIO, Amicus Curiae, represented by Jennifer Rachel Simon

WM Technologies, LLC, Amicus Curiae, represented by Kendra Nychel Beckwith