The Trump administration filed a lawsuit Monday against two California cities, challenging local laws that limit natural gas infrastructure and appliances in new buildings. The legal action targets policies aimed at reducing fossil fuel use to address climate change.
The complaint, filed in U.S. District Court in northern California, focuses on Morgan Hill and Petaluma, cities in the San Francisco area. Justice Department attorneys argue the ordinances, enacted since 2019, violate a 1975 federal law that bars states and cities from regulating the “energy use” of products already subject to federal standards.
“The natural gas bans not only impose crushing costs on California residents but are also unlawful,” the complaint stated.
Republicans, including former President Donald Trump, have repeatedly criticized local efforts to limit gas-powered appliances. California is a Democratic stronghold and is known for some of the most ambitious climate policies in the United States.
Since 2019, dozens of U.S. municipalities have passed ordinances restricting natural gas hookups in new construction. A federal appeals court in 2023 ruled that Berkeley could not enforce its 2019 natural gas ban, setting a precedent that the Trump administration cites in the new lawsuit.
City officials in Petaluma, including City Manager Peggy Flynn, have not immediately commented. Morgan Hill officials did not respond to requests for comment. California Governor Gavin Newsom and Attorney General Rob Bonta have also yet to issue statements.
The lawsuit marks the latest clash between federal and local governments over energy and climate policies. In July, Morgan Hill and nearby counties, including Santa Clara, joined lawsuits against the Trump administration over federal funding restrictions tied to issues such as diversity, equity, inclusion (DEI), and reproductive rights.
That same month, both cities also participated in another lawsuit with more than 30 Bay Area cities and counties challenging Trump-era actions affecting sanctuary jurisdictions.
Legal experts say the case could have broad implications for local governments nationwide. If the Trump administration succeeds, cities may face limits on their ability to restrict gas infrastructure in new buildings, potentially slowing efforts to reduce greenhouse gas emissions.
California has aggressively pursued climate initiatives, including the push to phase out natural gas in new homes and commercial buildings. Supporters argue these measures are necessary to combat climate change and promote clean energy. Critics counter that such policies increase costs for residents and businesses while restricting energy choices.
The Trump administration’s lawsuit underscores continuing tension between federal authority and local climate actions. The case is expected to draw significant attention as courts weigh federal preemption against local environmental regulations.
As the legal process unfolds, both sides will likely present arguments on economic impact, environmental priorities, and the scope of federal authority over energy standards. The outcome could influence similar policies in other states with strong climate goals.
