Key facts
- A federal appeals court heard arguments regarding Washington D.C.'s ban on natural gas in certain new buildings.
A federal appeals court appeared inclined to uphold Washington D.C.'s restrictions on natural gas in new buildings. The case hinges on whether federal law preempts local governments from prohibiting gas appliances.
The ruling will determine whether D.C.'s zero-energy building standards, which effectively ban natural gas appliances, can be implemented, impacting the future of fossil fuel use in new construction and potentially influencing similar regulations nationwide.
A federal appeals court appeared inclined to allow Washington D.C.'s restrictions on natural gas in certain new buildings to proceed. The legal challenge, brought by industry groups including the National Association of Home Builders and Restaurant Law Center, centers on the Energy Policy and Conservation Act (EPCA).
Industry challengers argue that EPCA, which grants the Department of Energy authority over appliance efficiency standards, prevents local governments from prohibiting the installation of federally regulated appliances like furnaces and water heaters. They contend that D.C. is attempting to achieve indirectly what federal law prohibits directly.
D.C.'s Clean Buildings Act requires specific newly constructed or substantially improved buildings to operate at zero energy starting in 2027, which effectively bans natural gas appliances in those properties. U.S. District Judge Ana Reyes previously upheld the law, ruling that EPCA governs appliance energy consumption, not whether a locality permits their installation.
The D.C. Circuit panel's apparent skepticism towards the preemption argument follows conflicting decisions from other federal appellate courts. The Ninth Circuit struck down a similar ban in Berkeley, California, while the Second Circuit upheld restrictions in New York City and New York State. The outcome in the D.C. case will determine the fate of the city's 2027 requirements and could further isolate the Berkeley ruling.