Is a Kei Truck Street Legal in Massachusetts?

Are Kei Trucks street legal in Massachusetts?

Yes, under a Registry of Motor Vehicles (RMV) policy that took effect on September 18, 2024. The RMV's advisory, dated September 17, 2024, covers Kei Trucks, Kei Cars and Kei Vans together. It lets owners register them, lets vehicles already on the books keep renewing, and assigns a passenger or commercial plate based on how each vehicle will be used.

Two caveats come with that yes. First, it is agency policy, not a statute, and no Massachusetts law names Kei vehicles. Second, the same advisory said the RMV would keep reviewing safety and was planning a formal study. We found no announcement of that study on the RMV news page as of October 2026, and registrations had already been paused once earlier in 2024. Treat the rule as current rather than permanent, and confirm it with the RMV before you ship a truck.

For the bigger picture, compare every state on our Kei Truck law map.

Where can you drive a Kei Truck in Massachusetts?

Massachusetts sets no Kei-specific road limit, speed cap or interstate ban. A registered Kei Truck uses the same roads and follows the same traffic laws as any other car or pickup.

What is legal is not always comfortable. A 660 cc truck with a short wheelbase does its best work on town streets, back roads and private land, not in fast multilane traffic. Our Kei Truck specs page covers engine output and gearing so you can judge your own routes.

How do you get a Massachusetts title and plates for a Kei Truck?

The RMV handles a Japanese truck as an imported foreign vehicle, sometimes called a grey market vehicle. For a used vehicle from any country other than Canada, it asks for:

• A Registration and Title Application stamped by your insurance agent
• A proof-of-ownership document, such as the Japanese export certificate
• Any bills of sale in the ownership chain
• The three federal import forms: the entry summary (Form 7501) from US Customs and Border Protection (CBP), the Environmental Protection Agency (EPA) Form 3520-1 emissions declaration, and the HS-7 safety-standards declaration from the US Department of Transportation (DOT)

Registrations and bills of sale written in another language must come with an English translation. If you have not imported yet, start with our guide to importing a Kei Truck, and use the 25-year rule page to confirm the build month before you bid.

1. Confirm age and import papers

   Check that the truck was built at least 25 years ago. Make sure you hold the CBP 7501 entry summary, the EPA 3520-1 declaration, and the HS-7 declaration from DOT with box 1, the 25-year exemption, marked.

2. Insure the truck first

   Massachusetts wants the Registration and Title Application stamped by your insurance agent before it will process an imported vehicle, so arrange a policy that meets the current minimums.

3. Translate the Japanese paperwork

   Use the export certificate as your proof of ownership and gather every bill of sale. Any registration or bill of sale written in another language needs an English translation.

4. Visit an RMV Service Center

   Bring the stamped application, ownership papers and customs forms in person. Ask for a passenger or commercial plate based on how you will use the truck, and expect to pay title and registration fees plus any tax due.

5. Pass inspection within 7 days

   Take the truck to a licensed Massachusetts inspection station within 7 days of registering. Most vehicles pay $35, and the inspection repeats every year.

What inspection and insurance does Massachusetts require?

Every vehicle registered in Massachusetts must pass an inspection each year, and a newly purchased vehicle has 7 days from registration to get one. The fee is $35 for most vehicles. The emissions portion applies only to vehicles with onboard diagnostics under 15 years old, so a Kei Truck old enough to import gets a safety inspection only.

That 7-day clock means the truck should arrive ready to pass. On a work truck past 25 years old, the usual trouble spots are dim or cracked lamps, streaky wipers, worn brakes and mirrors that will not hold their angle. Sort out the Kei Truck lights and wiper blades before the first visit. Our buying guide covers what to check on a truck that has to pass every year.

Insurance comes first, since the agent's stamp is part of the application. Since July 1, 2025, the Massachusetts minimum for new and renewed policies is 25/50 bodily injury coverage ($25,000 for one injured person, $50,000 per crash) plus $30,000 for property damage (Acts of 2024, Chapter 275). Some online quote forms will not take a short Japanese chassis number, so plan to work with an agent by phone.

What is pending in the Massachusetts legislature?

Two bills would write Kei registration into state law: H.4053, filed by Representatives Shirley Arriaga and Orlando Ramos, and H.3698, filed by Representative Steven Howitt. The Joint Committee on Transportation reported both favorably on July 28, 2025, and sent them to House Ways and Means. Neither has moved as of October 2026. Bills that do not pass before the two-year session ends must be filed again.

Read the size limits before you lobby. As filed, H.4053 defines a Kei vehicle as 130 inches long or less, and H.3698 sets an 11-foot (132-inch) cap. Japan raised its Kei length limit to 3.4 meters, about 134 inches, in 1998, so most trucks built since then would miss both definitions. Today's RMV policy has no size test, so neither number applies now.

Next door, New Hampshire repealed its periodic inspection law effective January 31, 2026, so upkeep rules now differ sharply across the border.