EPA unclear on HVAC install rule as deadline nears

The EPA has left contractors in limbo as the new year approaches.

Catch up quick: Under the agency’s current rule, many residential and light commercial R-410A systems are prohibited from being installed beginning January 1, 2026. 

• The EPA is reconsidering the rule and this fall proposed removing the deadline altogether, but it hasn’t yet issued a final rule.

What’s happening: With just days left before the deadline, ACCA has asked the EPA to clarify whether it will exercise “enforcement discretion” and not take action against contractors who continue installing R-410A systems that were legally manufactured or imported under prior rules.

• “With reconsideration underway and no enforcement guidance issued, the industry is left guessing how EPA will treat existing inventory until final action is taken,” the contractor association wrote. 

Why it matters: While the A2L transition is nearly complete, stranded R-410A inventory could exceed $500 million in total value, industry estimates suggest. 

• “Without clear enforcement direction, contractors are being forced to make business decisions without knowing where the compliance lines are,” ACCA added.  

What they’re saying: Asked for guidance, an EPA spokesperson told Homepros in a statement that the agency is “reviewing public comments” as it “continues working toward a final rule.”

• Go deeper: Contractors can chime in.