What is a motorcycle? If you’re most people, a motorcycle has two or three wheels, a saddle that has you sitting astride the vehicle, and directional control through handlebars. If you’re the federal government, it’s any vehicle that has fewer than four wheels with a few other qualifiers. A handful of lawmakers want to change that. Bill H.R. 3385 seeks to eliminate vehicles like the Polaris Slingshot from being called motorcycles.
This comes to us thanks to WTVC, and the bill has the motorcycle industry feeling uneasy. As it currently stands, the federal government is really flexible about the definition of a motorcycle. If you mosey on over to the Code of Federal Regulations, you’ll find this definition for “Motorcycle” under 49 CFR 571.3:
Motorcycle means a motor vehicle with motive power having a seat or saddle for the use of the rider and designed to travel on not more than three wheels in contact with the ground.
There are other federal standards that motorcycles must follow. You’ll find that motorcycles must have their headlight(s) on the vertical centerline and must follow certain labeling and measurement rules. But for the most part, if you build a vehicle that has fewer than four wheels, the federal government considers it to be a motorcycle.
Categories Of Motorcycle

This has led to a few very different vehicles existing in the landscape that, to the eyes of the federal government, are motorcycles. In the eyes of the feds, a Can-Am Spyder and a Polaris Slingshot are both motorcycles, even though they’re very different vehicles. A Can-Am Spyder has a motorcycle saddle, a motorcycle engine, a powersports transmission, and motorcycle controls mounted on handlebars. A Harley-Davidson Freewheeler, countless trike conversions, sidecar rigs, and other vehicles that are motorcycles but just with three wheels fit into this category.

Meanwhile, there’s another category of three-wheeler. A Polaris Slingshot has a steering wheel, car seats, a car powertrain, and even car wheels and tires. I single out the Polaris Slingshot here, but there are tons of models that fit this second category. If you own a Morgan 3 Wheeler, a Vanderhall, a Pulse Autocycle, a Reliant Robin, an HMV FreeWay, or any number of kit-built trikes, congratulations, the federal government sees you as owning a motorcycle.

Building a car with only three wheels comes with advantages. Your car doesn’t need to be crash tested, it doesn’t need to follow Federal Motor Vehicle Safety Standards for cars, and it doesn’t need to meet car emissions standards, either. This is how companies that don’t have the funding to make four-wheeled cars are able to get their products onto the market. This is also the case for the forgotten Elio and the possible future of the Aptera.
This has created a sort of weird situation, however, because these vehicles aren’t motorcycles in the traditional sense. You don’t drive a Polaris Slingshot and think you’re riding a motorcycle. It feels like a car. As such, states have picked up the slack, enacting their own flavors of “autocycle” regulations. The idea is that, if you own something like a Polaris Slingshot in a state that would normally require helmet use, that state might no longer require you to wear a helmet because the state is willing to consider carlike trikes, or autocycles, as something closer to cars.
The Bill

On May 14, 2025, Representative Derrick Van Orden (R) of Wisconsin sought to do something about this by filing Bill H.R. 3385. His bill gets straight to the point. If signed into law, the federal definition of a motorcycle will be defined as:
(a) In general.—Not later than 120 days after the date of enactment of this Act, the Secretary of Transportation shall issue such regulations as are necessary to amend the definition of the term “motorcycle” in section 571.3 of title 49, Code of Federal Regulations, to match the definition in this section.
(b) Motor cycle defined.—In this section, the term “motorcycle” means a motor vehicle, as was originally manufactured, with motive power, having a seat or saddle requiring the rider to sit astride, designed to travel on not more than three wheels in contact with the ground, steering controlled by handlebars, acceleration and braking controlled by handlebar and foot controls and capable of reaching speeds in excess of 30 mph.
That’s it. The bill ends there. While the bill was introduced last year, it has been slowly snaking its way through the House. Its last action was on February 10, when the bill moved to “Forwarded by Subcommittee to Full Committee by Voice Vote.”

Rep. Van Orden was precise in his wording here. His version of the federal definition of motorcycle will still define trikes as motorcycles, but only if they have foot controls, handlebars, and saddle seats that have the rider sit astride the vehicle. That means that the aforementioned Harley-Davidson trikes and the Can-Am trikes would be safe and allowed to be sold.
However, since federal law doesn’t have definitions for trikes that have car seats and car controls, the entire second category of motorcycles will no longer be considered motorcycles. This would put them into a sort of legal purgatory. These vehicles are not crash tested and aren’t built to car standards whatsoever, so they wouldn’t be considered cars. However, they would also be kicked out of the motorcycle category, too.
The Defense

The Motorcycle Industry Council has taken note of this discrepancy and says that if H.R. 3385 were to become law, it would effectively ban all carlike trikes, destroying that entire industry. Further, since 15 states, including Alabama, Florida, Idaho, and Illinois, tie their laws to the federal definition of a motorcycle, this could mean that potentially tens of thousands of vehicles will no longer be legal to drive.
Here’s some of what the Motorcycle Industry Council said in a letter dated January 10:
RE: Oppose H.R. 3385, which directsthe Secretary of Transportation to issue certain regulations to update the definition of motorcycle.
Dear Chairman Bilirakis, Vice Chairman Fulcher, and Ranking Member Schakowsky:
The Motorcycle Industry Council (MIC), represents several hundred companies in the powersports industry. H.R. 3385 will be considered on January 13 at the House Energy and Commerce Subcommittee on Commerce, Manufacturing, and Trade. We write to express our strong opposition to H.R. 3385, as the legislation threatens to eliminate an entire category of innovative American-made products from commerce and jeopardize thousands of domestic jobs.H.R. 3385 seeks to narrow the federal definition of a “motorcycle” by excluding three-wheeled vehicles equipped with steering wheels, pedals, and bucket seats—commonly referred to as autocycles. This is not a mere administrative adjustment; it is a de facto ban on an established and successful motorcycle market segment. Federal law currently lacks a separate “autocycle” safety category. By removing these vehicles from the motorcycle definition, H.R. 3385 places them in “classification limbo,” making it illegal to sell or register them.
The Motorcycle Industry Council argues that, in addition to “Total Market Elimination” and the aforementioned conflicts with state laws, H.R. 3385 is “A Deviation From Free-Market Principles,” would negatively impact American dealers, manufacturers, and workers, and disrupt established motorcycle safety standards.
As of now, it appears that the bill is still steaming ahead. It has gained sponsorship from Representative Jay Obernolte (R) of California, Representative Scott Fitzgerald (R) of Wisconsin, and Representative Darin LaHood (R) of Illinois.
Maybe There’s A Middle Ground?

I do get the desire to do something about autocycles. It has always baffled me that, in the eyes of the federal government, a Polaris Slingshot is the same thing as a Honda Super Cub. They are vastly different vehicles. It has also often rubbed me the wrong way when some startup companies pushing potential three-wheel vaporware tout their vehicles as being extraordinarily safe, when they would never actually have to prove their claim. If you want to build a car, but don’t want to worry about car safety or car emissions, just subtract a wheel, and the feds will call it a motorcycle. So, I get why there’s concern about autocycles.
However, I think the proper course of action is to carve out proper autocycle regulation, not just eliminate them entirely. There is a middle ground here that is not being explored.
It’s also confusing because this move would directly impact American business. Polaris builds the Slingshot right here in America. It’s the same deal with Vanderhall and some other, smaller companies slinging three-wheelers. These are vehicles designed, engineered, built, and sold by Americans.
Thankfully, there’s still plenty of time for this bill to be stopped. If you own one of these vehicles or support them, call your state representatives. Tell them that these vehicles should be legal. Otherwise, I’ll be monitoring this situation to see how it plays out.
Top graphic image: Polaris
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