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# EPA Allows R-410A Unit Installations Until Inventory Depletes
- URL: https://thefieldreport.io/epa-allows-r-410a-unit-installations-until-inventory-depletes/
- Published: 2026-08-30T19:57:51.000Z
- Updated: 2026-08-30T19:57:51.000Z
- Author: The Field Report
- Tags: All, Government

Regulation

The Environmental Protection Agency published a final rule on May 26\. It allows contractors to continue installing HVAC units using R-410A refrigerant as long as those units were manufactured or imported before January 1, 2025\. No new R-410A systems are being produced, so the available inventory will eventually run out. There's no fixed deadline for using existing stock.

This removes installation deadline pressure for contractors sitting on pre-2025 inventory or sourcing remaining units from distributors.

Check your warehouse and supplier stock levels now. This will help you understand how long you can continue selling R-410A units before transitioning entirely to newer refrigerants like R-454B.

**Key Takeaways:**

- R-410A units made before January 1, 2025 can be installed until supplies run out
- No new R-410A systems are being manufactured, limiting future supply
- EPA rule eliminates installation deadline for existing pre-2025 inventory

[Read the full story →](https://www.nahb.org/blog/2026/05/epa-hvac-refrigerants-r-410a-final-rule?ref=thefieldreport.io)