The Trump administration has officially moved to halt California’s planned phaseout of single-use propane cylinders, creating a direct conflict between federal transportation regulators and state environmental policymakers. The federal intervention targets a state law intended to eliminate the sale of the popular one-pound canisters that campers and outdoor recreationists widely use to operate portable cooking stoves.
The state legislation, originally passed by California lawmakers in 2024, established a retail sales ban on disposable one-pound propane containers scheduled to take effect in 2028. These handheld, dark green canisters—frequently manufactured under well-known outdoor brands such as Coleman and Bernzomatic—have long been a staple for campsite meals across California parks and recreational areas.
In a formal determination published this week in the Federal Register, the Pipeline and Hazardous Materials Safety Administration, an operating agency of the U.S. Department of Transportation, ruled that federal hazardous materials transport regulations preempt California's sales prohibition. The agency concluded that the state's reusability requirement conflicts with established federal standards governing the transportation of hazardous substances.
Federal officials strongly criticized the California statute in their public announcement, describing the forthcoming retail ban as an unlawful and radical measure. The administration also denounced the state policy as a "climate scam mandate," arguing that eliminating the conventional single-use canisters would negatively impact consumers by compelling them to purchase heavier and more expensive alternatives.
Paul Roberti, administrator of the Pipeline and Hazardous Materials Safety Administration, defended the agency's ruling in an official statement. Roberti asserted that while California's leadership continues to advance burdensome regulations that drive up costs and restrict consumer choice, the Trump administration remains focused on reducing regulatory red tape and shielding American families from pointless state laws.
The federal determination came after an official challenge was submitted by Worthington Enterprises, an Ohio-based manufacturer that produces the disposable one-pound canisters sold under both the Coleman and Bernzomatic brand names. Worthington had previously lobbied against several versions of the legislation before California enacted the measure, subsequently taking its formal preemption appeal to federal regulators last year.
Supporters of the ban expressed sharp disappointment with the decision issued by federal authorities. California State Senator John Laird, who represents the Central Coast district spanning from Santa Cruz to San Luis Obispo and served as the chief legislative sponsor of the phaseout, issued a statement calling the administration's action a disastrous decision for the environment.
The dispute highlights ongoing concerns regarding the volume of disposable fuel containers entering the state's waste streams each year. According to data from the California Product Stewardship Council, a nonprofit coalition that actively advocated for the sales prohibition, consumers in California buy between 4.5 million and 7 million disposable one-pound propane canisters annually.
Environmental advocates and state officials have stressed that managing these empty metal containers creates severe hazards for municipal waste infrastructure. Safely processing and recycling spent single-use propane cylinders requires specialized industrial machinery that many community recycling and disposal facilities do not possess.
As a result of these handling challenges, an estimated 3 million single-use canisters are improperly discarded into traditional trash bins each year rather than being handled appropriately. Once these pressurized containers arrive at standard waste and recycling facilities, leftover gas can ignite, causing dangerous explosions that pose severe safety hazards to sanitation and facility workers.
Prior to the agency's final ruling, California Attorney General Rob Bonta defended the state's legal position in formal written comments submitted to the safety administration earlier this year. In his rebuttal to the petition brought by Worthington Enterprises, Bonta argued that federal hazardous materials transport regulations do not preempt the state's sales restrictions.
To support the state's argument, Bonta noted that refillable gas containers are already standard throughout the country, pointing out that 20-gallon refillable propane tanks commonly used for outdoor backyard barbecue grills have operated safely in American households for decades without regulatory disruption.
Advocates of the 2028 retail ban continue to argue that transitioning to reusable cylinders offers meaningful economic and environmental advantages. Reusable one-pound cylinders can be refilled at home or swapped out through exchange networks, which proponents maintain reduces recurring fuel costs for campers while preventing millions of pounds of hazardous metal waste from accumulating in public landfills.
A commercial network for reusable one-pound cylinders is already active throughout California. Major retail chains, including REI, Home Depot, and Ace Hardware, currently stock refillable one-pound propane canisters on their shelves, while dedicated cylinder-exchange programs throughout the state allow campers to trade in empty canisters for full replacements.
Following the announcement of the safety administration's preemption ruling, the California Attorney General’s office did not immediately respond to requests for comment regarding its response or future legal steps. The federal determination sets up an ongoing jurisdictional battle over state-level environmental mandates and national hazardous materials regulations leading into the scheduled 2028 implementation date.
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