EPA's Revised Refrigerant Rule Draws Praise, Criticism, and Lawsuits

The EPA has changed a federal rule on refrigerants, and the update touches both home air conditioners and grocery store refrigeration. On May 21, 2026, the agency finalized revisions to its 2023 Technology Transitions rule, which governs the phasedown of HFC refrigerants (chemicals blamed for warming the atmosphere) in favor of lower-impact alternatives. One big change for homeowners: the EPA dropped the January 1, 2026 deadline that would have barred installing new residential and light commercial heating and cooling equipment using R-410A, a common refrigerant. That deadline is gone, giving more flexibility on what equipment can go into homes going forward.

The rule also eases requirements for some commercial refrigeration equipment, like the systems grocery stores use. Grocery industry groups support this, arguing the original timeline would have driven up costs that get passed on to shoppers. But other industry groups, including AHRI and HARDI, oppose the commercial refrigeration changes, warning that delaying the switch to newer refrigerants will keep demand high for older refrigerants just as their supply keeps shrinking under federal phasedown rules. They argue this could push refrigerant prices up, raising costs for service and repairs, including at the residential level.

Several trade groups have already sued over parts of the rule in federal court, so pieces of it could still change. The rule itself took effect in late July, 60 days after it was published.