Twenty-five years is the entire federal test. Once a Japanese kei truck clears that birthday, U.S. Customs and the National Highway Traffic Safety Administration treat it as exempt from Federal Motor Vehicle Safety Standards and wave it through the port. What happens after the truck rolls off the container has nothing to do with that federal clock. Rhode Island’s DMV started pulling registrations on legally imported kei trucks in August 2021, years after some of those trucks had already passed the 25-year mark. Massachusetts banned kei vehicle registration, then reversed itself in about 24 hours. Georgia’s legislature voted 170-1 to legalize them and the governor killed the bill anyway. The federal government answers one question — can this truck enter the country — and every state answers a completely different one on its own schedule.
The Federal Rule Only Covers the Border
NHTSA’s 25-year import exemption exists because the agency accepts that a vehicle old enough is no longer a meaningful safety-compliance risk to chase down. That’s a customs-and-safety-standards decision, full stop. NHTSA has no authority over whether a state issues a license plate, and it says as much in its own list of nonconforming vehicles eligible for importation — registration and on-road use are left entirely to the states. That gap is exactly where kei truck buyers keep getting burned. A dealer or importer tells you the truck is “25-year legal,” you assume that means street legal, and then you find out your state’s DMV has its own, completely separate definition of what belongs on a public road.
Rhode Island Pulled Plates Already Issued
Rhode Island never wrote a law banning kei trucks. Instead, according to the Providence Journal’s reporting, the state’s DMV simply began revoking registrations that had already been granted, starting in August 2021. DMV administrator Walter “Bud” Craddock told the paper the vehicles “were never manufactured in compliance with Federal Motor Vehicle Safety Standards” and noted that the American Association of Motor Vehicle Administrators discourages states from allowing them on public roads at all. Note the sleight of hand: the federal 25-year rule exists specifically because FMVSS compliance is no longer the deciding factor at that age, yet a state agency cited FMVSS non-compliance as its reason for yanking plates from trucks the federal government had already cleared.
Massachusetts Reversed Itself in a Single Day
Massachusetts shows how fast this status can flip in either direction. The state’s Registry of Motor Vehicles announced on September 17, 2024 that it would resume registering kei vehicles effective the very next day, September 18. Owners who already had plates kept them without interruption, and new registrations could get passenger or commercial tags depending on use. But the RMV’s own advisory makes clear this isn’t a settled legal question — the agency said it “intends to register Kei Vehicles while continuing to review safety implications,” with a formal safety study still to come. Buy a kei truck in Massachusetts today and your registration is valid based on a policy that could be revisited the next time that study lands on someone’s desk.
Georgia’s Legislature Wanted This. The Governor Didn’t Sign It.
Georgia is the clearest case of the legal trap having nothing to do with kei trucks themselves. House Bill 308 would have created a legal framework for registering, titling, and equipping “miniature on-road vehicles” statewide, with local governments retaining power to restrict them further. According to legislative records, it passed the Georgia House 170-1 in February 2025 and the Senate 47-6 in April 2025 — about as close to unanimous as state legislation gets. Governor Brian Kemp vetoed it on May 14, 2025, and his stated objection, per his office’s 2025 veto messages, was aimed at an unrelated Senate amendment mandating speed-limiting devices for reckless-driving offenders that the state lacked infrastructure to enforce. The kei truck framework got vetoed as collateral damage, and Georgia buyers are still working from whatever patchwork of local rules existed before the bill.
Texas Shows the Fix Is Possible — and Reversible
Texas offers the closer-to-happy ending, but it still illustrates the fragility. Field offices around the state had been refusing to title kei trucks and other mini vehicles outright until the Texas Department of Motor Vehicles issued Registration and Title Bulletin 001-24 in April 2024. The bulletin stated plainly that qualifying mini vehicles “are required to be titled and must be registered if operated on public roadways,” provided they pass standard safety inspection — a full reversal of the prior office-by-office refusals, arrived at after TxDMV consulted the Texas Department of Public Safety. It took one internal memo to turn thousands of trucks from unregisterable to street legal, which means, in theory, it would take one more memo to reverse it again.
Add it up and the pattern isn’t red states versus blue states, or rural versus urban — it’s that fifty separate agencies are each interpreting the same federally-legal-to-import truck through fifty different lenses of what counts as a real motor vehicle. A truck that’s perfectly legal to unload in Long Beach can be an unregisterable off-road toy the moment it crosses into the wrong state, and the only way to know for certain is to call that state’s own DMV before you wire the deposit — not the importer, not the seller, and not the federal paperwork sitting in the shipping container.