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EPA Wants to Roll Back Super Pollutant Rules

By and Sharon Chen | October 2, 2025

The Environmental Protection Agency has proposed loosening a rule phasing down the use of hydrofluorocarbons, or HFCs, highly potent greenhouse gases used in refrigerators and air conditioners.

The Tuesday comes in response to concerns “about the lack of availability of refrigerant alternatives during hot summer months and regulations that increase the cost of living for families,” EPA Administrator Lee Zeldin said in a statement.

The Trump administration is looking to extend deadlinesto comply with rules to switch to cleaner refrigerants. The EPA proposal applies to everything from residential air conditioning to retail food refrigeration and semiconductor manufacturing. The agency also wants to allow certain equipment, including cold storage used in warehouses, to use higher amounts of the more polluting chemicals.

In 2020, President Trump signed the law requiring the EPA to regulate the super pollutants, and the Biden administration finalized the regulation now being targeted with this recent proposal. “Control of HFCs has been one of the few areas of bipartisan agreement,” Michael Gerrard, faculty director of Columbia University’s Sabin Center for Climate Change Law, said in an email.

David Doniger, senior attorney and strategist for the Natural Resources Defense Council, said the proposal would worsen the climate crisis by not only allowing HFC use for longer, but in larger amounts for some equipment. “They are also proposing to weaken the rules even after the delay,” he said.

The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) expressed support for the existing 2023 rules. It said in that delaying some of the rule transition dates, as the EPA is proposing, “would disrupt multi-year planning and investment by US manufacturers” at a time when “companies have already retooled production, certified new equipment, and built supply chains around the current schedule.”

The Food Industry Association, meanwhile, . “We thank EPA for recognizing the need to find a way to achieve the agency’s goals while not overburdening the economy,” president and chief executive officer Leslie Sarasin said in a statement.

This proposal will soon be published in the Federal Register, after which there will be a 45-day public comment period.

Photo: An air conditioning unit. Photographer: Patrick T. Fallon/AFP/Getty Images

Topics Pollution

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