HEATING, AIR CONDITIONING & REFRIGERATION v. EPA

No. 21-1251 Consolidated with 21-1252 21-1253.

71 F.4th 59 (2023)

HEATING, AIR CONDITIONING & REFRIGERATION DISTRIBUTORS INTERNATIONAL, et al., Petitioners v. ENVIRONMENTAL PROTECTION AGENCY and Michael S. Regan, in his official capacity as Administrator of the U.S. Environmental Protection Agency, Respondents.

United States Court of Appeals, District of Columbia Circuit.

Decided June 20, 2023.


Attorney(s) appearing for the Case

Stephen K. Wirth and Wayne J. D'Angelo argued the causes for Association Petitioners and Petitioner Worthington Industries, Inc. With them on the briefs were Ethan G. Shenkman and Jonathan S. Martel . Zachary J. Lee entered an appearance.

David M. Williamson argued the cause and filed the briefs for petitioner Choice Refrigerants.

Andrew S. Coghlan , Attorney, U.S. Department of Justice, argued the cause for respondents. On the brief were Todd Kim , Assistant Attorney General, and Eric G. Hostetler , Attorney.

Melissa J. Lynch and David Doniger were on the brief for amicus curiae Natural Resources Defense Council in support of respondents.

Before: Henderson, Pillard and Walker, Circuit Judges.


Fridges, freezers, and air-conditioning are technological marvels, making our lives much more comfortable. But those amenities rely on harmful greenhouse gases called hydrofluorocarbons — HFCs for short.

According to the Environmental Protection Agency, those gases threaten...

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