Breaking newsRegulations, Policy & SafetyA Major HVAC Code Exception Expires Today. Contractors Still Don’t Know Whether the Industry Is Ready.The NEC’s temporary exemption for listed outdoor HVAC equipment expires September 1, 2026. A new protection requirement is now operative where adopted without amendment—even as AHRI and ACCA ask NFPA for two more years to resolve compatibility and product-readiness questions.TradeVulcan Dispatch Editorial Desk16 min