Industry groups and a plumber labor union challenged a New York City ordinance, Local Law 154, that prohibits the burning of fuels with high greenhouse-gas emissions in new construction.

A coalition of propane, gas, construction, and landlord trade and labor groups has sued the Village of Oak Park, IL. The industry groups argue that ordinances updating the village’s energy code are preempted by the federal Energy Policy and Conservation Act (“EPCA”). Their argument is based on the inclusion of electrification requirements for certain new buildings in the village ordinances.

Trade associations representing restaurants, home builders, hotels, apartments, and propane sued the City and County of Denver over its building codes, arguing that they are preempted by the federal Energy Policy and Conservation Act (“EPCA”).

Trade groups for the gas industry, builders, building owners, and developers sued the Maryland Department of the Environment, arguing that the state’s Building Energy Performance Standards are preempted by the federal Energy Policy and Conservation Act (EPCA).

A collection of trade groups and labor unions have sued New York State over 2023 laws that would restrict the use of fossil-fuel equipment in new buildings.

The U.S. Justice Department sued Morris Township, New Jersey alleging that its ordinance restricts natural gas, propane gas, and fuel oil infrastructure and appliances in new construction are preempted by the Energy Policy Conservation Act.

A group of industry organizations sued Washington, DC, alleging that the federal Energy Policy and Conservation Act (EPCA) preempts the District’s “net-zero-energy” law.

Trade associations representing home builders, manufacturers, hotels, apartments, and restaurants, as well as the pipefitters trade union, sued the South Coast Air Quality Management District (“SCAQMD”) in California, arguing that its newly adopted zero-emission nitrogen oxide (“NOx") standard for water heaters is preempted by the federal Energy Policy and Conservation Act (“EPCA”).

A group of industry organizations sued Montgomery County, MD over the county’s “Comprehensive Building Decarbonization” law, also known as Bill 13-22. This law requires the County Executive to issue new building standards eliminating fuel combustion from many new buildings.

Trade groups for landlords, hotels, and developers sued the City and County of Denver and the State of Colorado, arguing that state and local rules to reduce building energy use and emissions are preempted by the federal Energy Policy and Conservation Act (EPCA).