Supreme Court hearing could shape future of motorhome sales ban
The Supreme Court and motorhomes? Is there a connection? Possibly, because the U.S. Supreme Court has agreed to hear a case challenging the authority of a California Air Resources Board (CARB) regulation. While the regulation is not specific to the one that will effectively shut down the sale of new motorhomes in California, decisions in the case could have a bearing on motorhome sales.
The Supreme Court December 13 ruling to hear the case stems from a decision handed down by the U.S. Court of Appeals for the District of Columbia. This past April, the lower court essentially ruled that CARB’s Advanced Clean Cars regulations were within the state’s power to be put in force.
The appeal to the Supreme Court asking for the review (pdf) came from the State of Ohio which joined Diamond Alternative Energy, the offspring of Valero as well as other concerned parties.
In its challenge, Ohio wrote, “The Golden State is not the golden child. Yet in the Clean Air Act, Congress elevated California above all the other States by giving to the Golden State alone the power to pass certain environmental laws.”
The suit challenges the United States Environmental Protection Agency’s authority under the Clean Air Act. It hinges on whether the agency has the authority to grant waivers that enable California to enforce greenhouse gas emissions limits more stringent than federal regulations.
The lower court ruled that Diamond Alternative Energy, Ohio, and multiple other parties in the suit lacked standing. Because the parties to the lawsuit had no standing to challenge the EPA, the merits of the case were never examined.
The plaintiffs have requested the Supreme Court to decide on both the standing and the merits. However, the Court chose to hear only the standing issue.

What a decision could mean for the RV industry
Should the Supreme Court rule that the plaintiffs do have standing, the case will go back to the lower court for a hearing. If Diamond Alternative Energy’s case proves true then the CARB regulations specifically Advanced Clean Cars could be thrown out. Should that happen the Advanced Clean Trucks and Advanced Clean Fleets regulations could be likewise tossed out on precedent. These two are the ones the RV industry now says will effectively shut off the sale of new motorhomes in California and other states.
The Supreme Court and motorhomes decision is definitely an issue up in the air. There’s a lot of “ifs” in this entire equation. A big one says a trucking media group is the lower court’s track record when it comes to the EPA’s lynchpin regulation. Landline writes, “Historically, the D.C. Circuit Court has ruled in favor of the Clean Air Act. If the Supreme Court affirms the lower court’s decision, the case is more or less dead.”

EPA backs California plan to restrict sales of RVs, cars and pickups
Last week the U.S. Environmental Protection Agency (EPA) granted California approval to move forward on two regulations. They are sure to hit RVers hard. These regulations are in addition to the rule that some say would effectively ban new motorhome sales. Tow a car? Pull your trailer with a pickup? Hang on these other regulations will put the brakes on. By 2035, sales of these vehicles if not “zero emissions” will be turned off in California—and other states across the country.

EPA California waivers allow tougher emissions standards
An EPA news release published on December 18 summed it up: “The U.S. Environmental Protection Agency (EPA) is granting two requests from the California Air Resources Board (CARB) for waivers to implement and enforce its Advanced Clean Cars II (ACC II) regulations for light-duty vehicles and its ‘Omnibus’ low-NOx regulation for heavy-duty highway and off-road vehicles and engines. Under the Clean Air Act, California is afforded the ability to adopt emissions requirements independent from EPA’s regulations to meet its significant air quality challenges. The state must seek a waiver from EPA for new motor vehicle emission standards.”
Boiled down, the federal government is granting California the ability to enforce vehicle emissions standards more stringent than those under federal law. The EPA press release explained it this way: “California has longstanding authority to request waivers from EPA to protect its residents from dangerous air pollution coming from mobile sources like cars and trucks,” said EPA Administrator Michael S. Regan. “Today’s actions follow through on EPA’s commitment to partner with states to reduce emissions and act on the threat of climate change.”

Sales of some pickups and towed cars shut down by 2035
What could affect sales of passenger cars, pickup trucks, and lighter motorhomes is California’s ACC II program. It’s a package of requirements for model year 2026 through 2035 and beyond. Essentially, the regulations will gradually reduce sales of these rigs that are not “zero emissions” and will shut them down completely by 2035. This applies to both gasoline- and diesel-fueled rigs.
The EPA also granted California permission to implement its Low-NOx regulation. This will affect heavy-duty rigs—those with a Gross Vehicle Weight Rating (GVWR) of 26,000 pounds or more. That regulation forces engine manufacturers to produce engines with significantly reduced engine NOx (nitrogen oxides) and reduced particulate emissions. For big motorhome buyers, it might not make a great deal of difference if the RV industry is correct in its argument that they can’t get big motorhome chassis anyway.
Big Class A units aside, what about the regulation that could spell major issues for pickup trucks and cars? Three car companies are meeting California’s standards: Honda, Ford, and Volkswagen. However, industry group Alliance for Automotive Innovation says the states that have adopted California’s rules are falling way short of the 35 percent of zero-emission sales mark required in 2025. It observes that the 100 percent goal to be met in 2035 is highly unlikely.

With administration change, will it happen?
Some might argue that the whole thing is a tempest in a teapot—or, for my readers, perhaps a Tiffin in a teapot. Major players affected by the heavy-duty vehicle regulations are commercial truckers. Commenting on the EPA ruling allowing California to move ahead is Todd Spencer. He’s the president of the Owner-Operator Independent Drivers Association.
“EPA’s credibility outside of radical environmental circles would have been better served by working with regulated industries rather than ramming through last-minute special interest favors,” Spencer said. “We look forward to working with the Trump administration’s EPA in good faith towards achievable environmental outcomes.”
Yes, therein lies what some might call the Trump card. The new presidential administration could swiftly change the rules again. While it cannot rewrite California regulations, it could rescind the waiver just granted by the Biden EPA. In a political game reminiscent of ping-pong, Trump yanked California’s authority on emissions in 2019 in his first presidency. When Biden took on the new role in 2022, his EPA restored that authority.
In addition to opposing California’s ambitious climate policies, Trump stated in October that if he was re-elected as president, no state would be permitted to ban gasoline-powered cars or trucks.
Trump also said in August that he planned to end the EV tax credit. “When I’m president, no state in America will be permitted to ban gas-powered cars or trucks, and I guarantee it—no way,” Trump said during a Michigan rally. “You’re going to make them right here,” he added.
Should the President-elect Trump EPA return the serve by reversing the EPA California waivers, here’s an easy guess. Lawsuits will fly. Just how it will all play out remains to be seen.
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Worth Pondering…
Two things are infinite: the universe and human stupidity; and I’m not sure about the universe.
―Albert Einstein











































