Methodology
How KeiScout Researches & Verifies Kei Truck Laws
Our primary-source-first process for researching, sourcing, verifying, and updating state-by-state Kei vehicle requirements — and why some states currently show Research Pending.
KeiScout maintains a structured database of Kei vehicle titling, registration, and road-use requirements for all 50 states and Washington, D.C. This page explains how that database is built, verified, and maintained. It is the companion to our Editorial Policy, which governs how we create, review, and correct published content more broadly.
Primary sources first
Every state entry is intended to be grounded in primary sources — state statutes, administrative codes, Department of Motor Vehicles and Department of Transportation publications, and official guidance. We do not treat forum posts, hearsay, or dealer marketing as authoritative.
Source hierarchy
We weigh sources in a deliberate order, and we cite the highest-authority source available for each claim:
- Primary government sources — state statutes, administrative/vehicle codes, DMV/DOR/DOT policy bulletins, and official state guidance. These carry the most weight.
- Official secondary references — legislative bill text and status, attorney-general opinions, and agency FAQs that interpret the primary law.
- Independent cross-checks — reputable specialist references used only to corroborate a primary source, never to originate a legal classification.
Federal rules vs. state rules
Kei truck legality has two distinct layers, and we keep them separate on every page. Federal law governs whether a vehicle may be imported into the United States at all — most classic Kei trucks qualify under the 25-year FMVSS exemption based on their actual manufacture date. State law then decides, independently and differently in each jurisdiction, whether an imported Kei truck can be titled, registered, and driven on public roads. A vehicle can be perfectly legal to import federally and still be restricted or prohibited for road use in a given state.
Verification process and dating
Each verified state record carries a Last Verified date, a verification level, and links to the official sources used. A researcher confirms the current status against the primary source, records the citation, and dates the entry. Kei vehicle policy is actively changing in many states, so a status without a recent verification date is treated as provisional.
How we handle regulatory changes
Some states have active or pending legislation, and administrative policy can shift without a new statute. Where we are tracking movement, a record carries a Change Watch note. When a rule changes, we re-verify against the primary source, update the status and the Last Verified date, and adjust the summary — rather than leaving stale guidance in place.
Why some states show “Research Pending”
Where we have not yet completed primary-source verification for a state, we display Research Pending rather than publish an unverified legal classification. We would rather show nothing than show something wrong. Verified state pages are added on a rolling basis.
Corrections and updates policy
If you believe something is inaccurate or out of date, contact us at hello@keiscout.com. We review reports against primary sources and, where warranted, correct the record and update the Last Verified date. Substantive corrections follow the standards in our Editorial Policy.
Important research limitations
Our research reflects our reading of the sources available as of each entry's verification date. Requirements can vary by county or municipality, enforcement practices differ, and agencies can revise policy at any time. We cannot guarantee that a status remains current at the moment you read it.
Not legal advice — verify before you buy
This research is provided for general educational and informational purposes and is not legal advice. Always confirm current requirements directly with the applicable government authority — your state DMV/DOR and, where relevant, local officials — before purchasing, importing, titling, or registering a vehicle.