EPA Confirms Pre-2025 R-410A Units Can Be Installed Until Stock Runs Out
The U.S. Environmental Protection Agency published a final rule in May confirming that HVAC units manufactured or imported before January 1, 2025, that use R-410A refrigerant can continue to be installed until existing supplies run out. No new complete R-410A systems are being manufactured as of this year. The rule removes any legal uncertainty around installing pre-2025 inventory still sitting in warehouses and on contractor trucks.
This gives contractors breathing room during the A2L refrigerant transition. You can legally work through your existing R-410A stock without regulatory risk. However, the supply is finite and will eventually disappear from the market. Contractors who stockpiled large quantities of R-410A units may have an advantage in the short term. Everyone will need to move to A2L equipment as inventory depletes.
Check your current R-410A inventory levels. Project how long your supply will last based on typical installation volume. Use this transition period to train your team on A2L safety protocols and equipment handling.
Key Takeaways:
- R-410A units made before January 1, 2025, can be installed legally until depleted
- No new R-410A complete systems are being manufactured as of 2025
- Supply is finite and will eventually run out across the market
