Advocacy

Court Rules that EPCA Does Not Apply to California Zero-NOx Emission Regulation

July 30, 2025 | 3 minute read

A recent federal court ruling could have major implications for HVACR appliance regulations. On July 18, a California district court found that SCAQMD Rule 1146.2 is not preempted by federal energy law because it targets emissions rather than energy efficiency. This decision highlights the growing impact of local environmental rules on our industry.

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