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 collection of home builders, gas utilities, and building trade unions sued the Washington State Building Code Council (“WSBCC”) over its new building codes, arguing that they violate the federal Energy Policy and Conservation Act (EPCA).

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.

The tobacco industry challenged the U.S. Food and Drug Administration’s assessment of a civil monetary penalty, arguing that it is entitled to a jury trial when assessed such a penalty.

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.

The tobacco industry sued the U.S. Food and Drug Administration on First Amendment grounds, challenging the agency’s graphic health warning label rule.

Twenty-two youth plaintiffs from five U.S. states (Montana, Florida, Oregon, California, and Hawai'i) filed a lawsuit against the Trump administration, challenging a set of Executive Orders (EO’s) written to undo climate protections, reject climate science, and maximize fossil fuel production.

The city of Denver filed suit against Philip Morris and other major tobacco manufacturers to hold them accountable for cigarette litter, with charges including public nuisance, trespass, negligence, and violation of state law.

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”).

In 2024, North Carolina passed H.B. 900 into law, which created an e-cigarette registry. The district court denied the plaintiff’s request to enjoin the law on the grounds that it is preempted, and the Fourth Circuit affirmed.