It can be difficult to keep up with the EPA’s refrigerant regulations over the last few years, right? The Technology Transitions Rule under the American Innovation and Manufacturing (AIM) Act has raised a lot of questions in the HVAC community about how, and when, HVAC pros need to comply with the new regulations.
In May 2026, the EPA finalized revisions to the rule, reversing its previous ruling. In a nutshell, it eased compliance deadlines that many in the HVAC industry felt were too harsh. The transition to lower global warming potential (GWP) refrigerants like A2L units is still a go, but HVAC businesses now have more breathing room to adapt and transition to those changes.
The headline for the HVAC industry: The EPA removed the installation deadline for the R-410A system residential air conditioners and heat pumps manufactured or imported before January 1, 2025. This rule applies to pre-2025 split systems, not packaged systems.
As you know, the previous deadline came and went on January 1, 2026, leaving contractors with excess R-410A inventory that couldn’t be used. Bottom lines took a hit.
Under the new rule, HVAC pros can still install the R-410A units until inventory has been exhausted.
The EPA also relaxed compliance times for commercial refrigeration sectors.
Key Takeaways for HVAC
The most important thing to know is that the refrigerant transition plans haven’t been cancelled. This new ruling is simply giving people more time to manage it.
Inventory becomes less of a drain on your bottom line. You don’t have to eat the cost when the R-410A units in your stock room become obsolete overnight.
Flexibility. While manufacturers are not still producing new R-410A units (except for components needed to service them), the existing models in the marketplace can be sold, installed, used, and serviced.
The ability to plan strategically. HVAC companies can plan for a gradual transition to the new A2L models, based on how much current inventory they have. Techs may need training to install and service the newer units, and now there’s more time for that.
A Note About Packaged Systems
The relaxed rules only apply to residential and light commercial split systems. Packaged systems are still bound under the existing three-year sell-through deadline that is based on the unit’s manufacturing date. If it has been three years or more since the manufacturing date, it’s off limits.
Bottom line: The long-term goals of the AIM Act have not changed. The new ruling means we simply have more time and flexibility to plan for and adjust to the new rules. Use the time wisely to train your service pros, fully understand the new technology, and get up to speed on how to communicate the changes to customers.
