Are Kei Trucks Street Legal in Maine?

Are Kei Trucks street legal in Maine?

No. Maine law defines an off-road vehicle as a motor vehicle that, because of its design, configuration, original manufacture or intended use, falls short of the state's inspection standards, the federal safety standards known as FMVSS (Federal Motor Vehicle Safety Standards), federal emissions requirements or federal crash-test standards, and is not a moped or motorcycle (29-A M.R.S. §101, sub-§47-A). A Japanese-market Kei Truck was never certified to FMVSS, so it falls into that group. Section 354 then says an off-road vehicle may not be registered under the motor vehicle title, with an exception only for government-owned vehicles.

Maine did register some of these trucks in the past. In spring 2021 the Bureau of Motor Vehicles (BMV) sent owners of imported Japanese vehicles, Kei Trucks among them, letters cancelling their registrations under §354, and the Legislature amended both sections that year (Public Law 2021, chapter 216).

Where can you drive a Kei Truck in Maine?

Only on private property, with the landowner's permission. Typical uses are farms, woodlots and private camps. The BMV's 2026 report states that off-road vehicles may not be operated on Maine roads, apart from government entities with trained operators in limited circumstances.

Two common ideas do not get around the ban:

• Plates from another state. The BMV says off-road vehicles registered elsewhere cannot have that registration transferred to Maine. Registering in another state while you live in Maine can also break residency and garaging rules and void your insurance. Talk to an attorney before trying it.
• Antique plates. According to the same report, Maine's antique class still expects a vehicle that met FMVSS for its year of manufacture.

What did Maine's 2026 working group decide?

A 2025 resolve (Resolves 2025, chapter 29, from LD 1209) had the Secretary of State convene a seven-member working group on nonconforming vehicles, including mini trucks and antique military vehicles. Its seats went to the BMV, a State Police traffic safety expert, an auto insurer, a vehicle inspection business, a foreign-car importer, someone representing municipalities and a transportation museum. The group began meeting on October 6, 2025, and its report to the Legislature's Transportation Committee was due in February 2026.

The recommendation was no change, and it was unanimous. In our words, the report's main reasons were:

• Maine's annual inspection is built on FMVSS, so certified inspectors would have no workable yardstick for a nonconforming vehicle.
• State Police representatives said they lack the staff and expertise to enforce the federal standards themselves.
• An exception for mini trucks and military vehicles could invite demands for the same treatment for ATVs and dune buggies.

We found no bill acting on the report before the 2026 session ended, so any change would have to start with the next Legislature.

What can Maine owners do?

1. Use it on private land

   Farm, woodlot and camp use with the landowner's permission needs no Maine registration. Public roads are off limits.

2. Trailer it between properties

   Haul the truck on a registered trailer when it has to move between parcels or to a repair shop.

3. Do not register it elsewhere

   The BMV says off-road vehicle registrations from other states cannot be transferred to Maine, and using another state's plates while living here can break residency rules and void insurance. Talk to an attorney before trying it.

4. Keep the import paperwork

   Hold on to the export certificate, the HS-7 import declaration, EPA Form 3520-1 (the Environmental Protection Agency's import declaration) and the customs entry. You will need them if Maine changes course or you move to a state that registers Kei Trucks.

5. Talk to your legislators

   A future bill would need to answer the working group's inspection concerns, for example with an equipment checklist that inspectors can actually apply.

Our importing guide explains each of those federal forms. A Kei Truck that never leaves the property still needs care, so keep up with Kei Truck filters and timing belt kits, and see our maintenance guide for service intervals.

If you are still deciding what to buy, compare a Kei Truck with a side-by-side in our Kei Truck vs UTV guide, and see which states do register them on the Kei Truck law map.