EPA is about to alter Biden-era HFC rules

By Jean Chemnick | 09/29/2025 06:17 AM EDT

The biggest change is a yearslong deadline extension for converting air conditioning to use newer chemicals that do less climate damage.

A grocery store employee arranges frozen food.

An industry group representing grocers and frozen food businesses is asking EPA for a seven-year delay before initiating a rule on hydrofluorocarbons. Pat Sullivan/AP

EPA is close to revealing its plans for one of the few climate policies that hasn’t yet been altered by President Donald Trump’s administration.

The White House completed its review of a rule Thursday that is expected to tweak Biden-era requirements to phase down hydrofluorocarbons used in air conditioning and refrigeration systems. The chemicals are a potent source of global warming.

It’s unclear how EPA has proposed to change the rule or when it will be released. But with a government shutdown looming Wednesday, some stakeholders are hoping the agency releases the regulation Monday or Tuesday.

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“We’re very much aware that time is of the essence to get this completed,” said Kevin Fay, executive director of the Alliance for Responsible Atmospheric Policy, an industry group that supports the transition away from HFCs.

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