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# EPA Rule Now Allows R-410A Unit Installs Until Inventory Runs Out
- URL: https://thefieldreport.io/epa-rule-now-allows-r-410a-unit-installs-until-inventory-runs-out/
- Published: 2026-09-21T14:03:52.000Z
- Updated: 2026-09-21T14:03:52.000Z
- Author: The Field Report
- Tags: All, Government

![EPA Rule Now Allows R-410A Unit Installs Until Inventory Runs Out](https://storage.ghost.io/c/10/b4/10b4e534-6c6b-4f4b-b478-e8bbc462d032/content/images/2026/09/post-image-1789999429.png)

The U.S. Environmental Protection Agency published a final rule on May 26\. It allows contractors to continue installing HVAC units that use R-410A refrigerant as long as those units were manufactured or imported before January 1, 2025\. The rule became effective July 27\. Contractors can now work through their remaining R-410A inventory without regulatory penalties.

This removes uncertainty for contractors holding legacy equipment during the transition to A2L refrigerants.

Check your current R-410A inventory and confirm manufacturing dates to verify which units qualify for installation under this exemption.

**Key Takeaways:**

- R-410A units made or imported before Jan. 1, 2025, can be installed indefinitely
- EPA rule took effect July 27, 2026
- No penalties for installing qualifying legacy equipment during A2L transition

**Source:** U.S. Environmental Protection Agency