Are Kei Trucks Street Legal? State-by-State Guide

Last reviewed August 2026. Kei-vehicle rules have changed in both directions almost every year since 2021 — always confirm with your own DMV before you buy.

The 25-year import rule

Under NHTSA’s 25-year rule, a vehicle that is at least 25 years old — measured from the month of manufacture, not the model year on the badge — may be imported into the United States without having to meet Federal Motor Vehicle Safety Standards (FMVSS). EPA emissions certification is generally waived at 21 years. That federal eligibility window is why a 1997 Honda Acty can enter the country at all: nobody has to prove it meets American crash standards, because the exemption removes the requirement.

The 25-year import rule is not a licence to drive. It answers only whether the truck may legally cross the border and be titled as an import. Whether you can register it for public roads is a separate, state-by-state question, which is the rest of this page.

Importing is federal. Driving is not.

Two different layers of government decide whether a kei truck can sit in your driveway and whether it can leave it.

The federal layer is the 25-year import rule above. A federal import exemption is not a registration entitlement, and no federal rule obliges a state to issue a plate.

The state layer governs whether the vehicle may be registered for road use. Your state DMV sets its own rules for what it will put a plate on.

This is why you will read that kei trucks are “legal in the US” and also that they are “banned” — both statements are true, about different layers.

Why states disagree with each other

Most state-level restrictions trace back to guidance from the American Association of Motor Vehicle Administrators (AAMVA), an association of motor vehicle agencies. AAMVA is not a regulator and its guidance is not law, but state DMVs follow it.

AAMVA published a best practice in 2011 recommending that member states treat mini-trucks as off-road vehicles, and broadened its position in 2021 toward vehicles that do not meet FMVSS. Several states adopted that framing, and a few revoked registrations they had already granted.

A recurring problem is that “mini-truck” and “kei truck” are not the same thing. A mini-truck in the AAMVA sense is often a low-speed utility vehicle that was never road-registered anywhere. A kei truck is a road-legal Japanese class of vehicle that was type-approved for highways in its home market and has usually spent decades on public roads. Where a state has written its rule around the mini-truck definition, kei vehicles can get swept up in it — which is why several restrictions have been reversed after being challenged.

Where your state stands

Grouped by how the state has generally treated kei-class registration. This is a starting point for your own check, not a legal opinion — the detail that matters is usually in how your state classifies the vehicle, not whether it says yes or no.

New York, where we are based

We are a New York business, so we will be blunt about our own state. The NYS DMV states that it will not register or title any Kei-class vehicle unless the applicant provides proof the vehicle has been brought into compliance with all applicable Federal Motor Vehicle Safety Standards (FMVSS) and U.S. Environmental Protection Agency (EPA) emission requirements in effect at the time the vehicle was manufactured by the original fabricating manufacturer.

An imported kei truck was never built to FMVSS, so in practice that test cannot be met and there is currently no route to road registration in New York. New York buyers use these trucks on private property — farms, orchards, campgrounds, warehouses, large properties — or register them in another state where they legally reside. We would rather tell you that before you buy than after.

Source: NY DMV — Register an Imported Vehicle.

Before you buy, do these four things

1. Confirm the build date, not the model year. The 25-year clock runs from the month of manufacture. A truck built in late 2001 is not importable until that same month in 2026.
2. Ask your DMV the classification question above, in writing. “Can I register a kei truck?” often gets a different answer from “how would you classify this vehicle?”
3. Check for road-class restrictions. Plenty of states that allow registration still bar these vehicles from interstates or roads posted above a set speed. That may be irrelevant for farm use and decisive for commuting.
4. Confirm insurance before payment. Some carriers will not write an on-road policy for an imported kei vehicle even in states that register them.

Common questions