Disclosure: this guide contains referral links, marked where they appear. Market data is independently measured from public sources on the dates shown.
A correction first, because this page changes an entry in my own fifty-state table. Idaho has been listed on this site, and on most other lists, as a full-registration state with no kei-specific restriction. Reading the statute, that is wrong. Idaho Code § 49-402(10) says:
“Any vehicle that does not meet federal motor vehicle safety standards shall not be registered and shall not be permitted to operate on public highways of the state, as defined in section 40-117, Idaho Code, unless otherwise specifically authorized.”
That is an express bar, and Idaho’s own definition of the standards closes the argument: § 49-107(5) provides that vehicles “as originally designed and manufactured shall be so certified by the manufacturer” to meet them. A Japanese-market kei truck was never so certified. It does not meet FMVSS in the sense Idaho’s code uses, so ordinary registration is off the table. A legislature can undo a clause like that in two sentences when it decides to — Alaska did exactly that in June 2026, barring its DMV from requiring federal safety compliance from any legally imported vehicle 25 years or older, without a single no vote in either chamber.
The rest of this page is about the words “unless otherwise specifically authorized,” because Idaho’s authorization is unusually generous, and about the fact that Idaho will still title the truck. I research Japan’s used vehicle market from Sapporo.
The Short Answer
- Ordinary registration is barred by statute, not by agency practice. § 49-402(10) is explicit.
- Idaho will title an imported truck. § 49-504(2) accepts “other evidence of ownership required by the law of any other jurisdiction,” plus a VIN inspection.
- The VIN inspection can be done by any city, county or state peace officer — not a specialist unit and not a central office.
- The off-highway route reaches every highway in Idaho that is not a state highway and not an interstate, with no local opt-in needed.
- State highways are partly open too: inside a city and one mile beyond where posted at 60 mph or less, and in five-mile connecting stretches on state highways posted at 65 mph or less.
- It costs $3.75 for the plate and $12 a year for the sticker.
- The obstacle is one word: Idaho’s utility type vehicle definition says “recreational.”
- Insurance is 25/50/15, and Idaho’s sales tax is 6%.
Idaho Titles It, Which Is Not Nothing
Start with the good news, because it separates Idaho from most of the closed states in this series.
Idaho Code § 49-504(2) governs titling a vehicle that was not previously titled in Idaho:
“If the current certificate of title was not issued for the vehicle in this state, the application…shall be accompanied by a certificate of title, bill of sale, electronic motor vehicle record, or other evidence of ownership required by the law of any other jurisdiction from which the vehicle was brought into this state and a vehicle identification number inspection completed by any city, county or state peace officer or other special agent authorized by the department.”
Three things are notable, and each of them is a place other states stop.
“Any other jurisdiction” is not limited to another state. A Japanese export deregistration certificate is evidence of ownership required by the law of the jurisdiction the vehicle came from, which is what the sentence asks for.
No customs form is named, no bond release letter, no compliance statement. Compare New Mexico, whose procedures manual requires a NHTSA bond release letter that a 25-year import cannot generate. Idaho’s titling statute asks for ownership and identity, not conformity.
The inspection is deliberately easy to obtain. “Any city, county or state peace officer” means a sheriff’s deputy or a city police officer can do it. That is a lower bar than Louisiana’s requirement for a P.O.S.T.-certified officer specifically certified by the State Police to inspect vehicles, and far lower than a central-office appointment.
A title matters even when a road plate does not. It is what makes the truck insurable on sensible terms, sellable without argument, and provable as yours. If you buy for a farm or a property in Idaho, get the title even though you cannot get an ordinary plate.
Why Ordinary Registration Is Closed
Section 49-402 sets the annual registration fees, and its opening words already carry the condition. Subsection (1) applies to “each pickup truck, each neighborhood electric vehicle and each other motor vehicle having a maximum gross weight not in excess of eight thousand (8,000) pounds and that complies with the federal motor vehicle safety standards as defined in section 49-107.” Subsection (3) does the same for motorcycles.
Then subsection (10) states the rule in general terms rather than leaving it to inference from a fee schedule. A vehicle that does not meet the standards “shall not be registered and shall not be permitted to operate on public highways.”
The definition it points to, at § 49-107(5), is worth reading because it decides how the test is applied:
“‘Federal motor vehicle safety standards (FMVSS)’ means those safety standards established by the national highway traffic safety administration, under title 49 CFR part 500-599… Such vehicles as originally designed and manufactured shall be so certified by the manufacturer to meet the federal motor vehicle safety standards or the standards in force for a given model year or as certified by the national highway traffic safety administration.”
The test is manufacturer certification at the time of manufacture. It is not about how the truck is equipped now, and it cannot be satisfied by adding lamps or mirrors. This is the same shape of barrier as Iowa’s part 567 label requirement — a documentary condition rather than a safety judgment — with the difference that Idaho wrote it as a general prohibition rather than as a ground for refusing an application.
Which makes the closing words of subsection (10) the whole game: “unless otherwise specifically authorized.”
The Authorization: Idaho’s Off-Highway Route Is the Broadest in This Series
Idaho authorizes off-highway vehicles on public roads through § 49-426(3), and the scope is worth reading slowly. An OHV licensed under chapter 4 and numbered under § 67-7122 may operate on:
- “All highways that are not state highways and that are not interstate highways.” Every city street, county road and highway district road in Idaho, with no ordinance, no opt-in and no permit.
- Any non-full-access-controlled state highway inside a city and for one mile beyond the city limits, where the posted speed limit is 60 mph or less.
- Any non-full-access-controlled state highway outside a city where the posted limit is 65 mph or less, “for continuous distances of no more than five (5) miles for the limited purpose of connecting between OHV trails, obtaining access to or from an OHV trail, or to access necessary services such as fuel, lodging, food and beverage, and maintenance.”
- Crossings of any highway except interstates and full-access-controlled state highways, at a public road intersection or where an OHV trail crosses, after a complete stop and yielding.
Set that against the other conditional states. Ohio requires a municipality or township to opt in before you may use any road at all. Kentucky requires a city or county ordinance and then caps you at 20 miles on centerline-marked highway. Minnesota wants an ordinance and an individual permit with a sheriff’s inspection. Idaho hands over the entire non-state road network by statute and then adds service-access rights on state highways.
What it costs to use it
Section 49-402(4) sets out the two payments for operating an ATV, utility type vehicle or motorbike “on city, county or highway district roads or highways open to such use”: a restricted vehicle license plate fee pursuant to § 49-450, and the certificate of number fee in § 67-7122.
Section 49-450 charges $3.75 per plate. Section 67-7122 charges $12.00 for each certificate of number, issued by season, running 1 January to 31 December, with the validation sticker placed on the restricted vehicle license plate. That is the whole road cost.
The word in the way
All of the above depends on the truck being an off-highway vehicle, which under § 67-7101 means an ATV, motorbike, specialty off-highway vehicle or utility type vehicle. The ATV class needs handlebars and a straddle seat, and the motorbike class has two wheels, so the question is the UTV:
“‘Utility type vehicle’ or ‘UTV’ means any recreational motor vehicle other than an ATV, motorbike or snowmobile…designed for and capable of travel over designated roads, traveling on four (4) or more tires and having a maximum width less than eighty (80) inches. A utility type vehicle must have a minimum width of fifty (50) inches and a minimum weight of at least nine hundred (900) pounds. Utility type vehicle does not include golf carts, vehicles specially designed to carry a disabled person, implements of husbandry…or vehicles otherwise registered under title 49.”
| Idaho’s UTV definition requires | A kei truck is | Verdict |
|---|---|---|
| Four or more tires | Four | Clear |
| Maximum width less than 80 in | 1,475 mm = 58.1 in | Clear |
| Minimum width 50 in | 58.1 in | Clear |
| Minimum weight 900 lb | 670–850 kg = 1,477–1,874 lb | Clear by a wide margin |
| Designed for and capable of travel over designated roads | Yes | Clear |
| Not otherwise registered under title 49 | Cannot be, by § 49-402(10) | Clear |
| A “recreational” motor vehicle | A commercial light truck | The open question |
On dimensions this is the best fit any off-highway class in this series offers a kei truck. Most states’ definitions fail it on a hard number — New Mexico caps the gross weight rating at 1,750 lb, Iowa demands nonhighway tires, Utah wants a straddle seat or low-pressure tires and a roll cage. Idaho’s numbers all fit, and the minimum weight of 900 pounds even works the same way as the floors in Kansas, Arkansas and Alabama, keeping golf carts out rather than trucks.
What is left is the adjective. “Recreational motor vehicle” is not defined in the section, and a kei truck was built as a working vehicle. Whether the Department of Parks and Recreation, which administers the certificate of number, or a county assessor issuing the restricted plate, reads the word as describing the vehicle’s design or the owner’s use is not something any published Idaho source answers. This is the question to put in writing before you buy, and it is a much narrower question than the one owners face in most states.
The Farm Exemption, Which Needs No Plate at All
Section 49-426(2) contains a permission that costs nothing:
“Motorcycles and off-highway vehicles need not be licensed under the provisions of this chapter or numbered pursuant to the provisions of sections 67-7122 and 67-7124…if they are being used exclusively in connection with agricultural, horticultural, dairy and livestock growing and feeding operations, or used exclusively for snow removal purposes. Travel upon the public highways must be limited to travel between farm or ranch locations. Motorcycles and off-highway vehicles used for this purpose must meet the emblem requirements of section 49-619.”
Read it with subsection (3) and the picture is better than it first looks: vehicles exempt under subsection (2) are expressly included in the list of vehicles permitted to operate on non-state, non-interstate highways. So a truck used exclusively for farm work or snow removal gets the road access without the plate or the sticker — at the cost of a genuine exclusivity condition and a slow-moving vehicle emblem under § 49-619.
“Exclusively” is doing real work in that sentence, and “travel between farm or ranch locations” is not a general errand permission. Treat it as what it is: a working exemption for a working vehicle.
What It Costs
| Item | Amount | Authority |
|---|---|---|
| Restricted vehicle license plate | $3.75 per plate | § 49-450, via § 49-402(4) |
| OHV certificate of number, per season | $12.00 (1 January to 31 December) | § 67-7122(1) |
| Certificate of title | Set by statute; confirm at the county assessor’s motor vehicle office | Title 49, chapter 5 |
| VIN inspection | By any city, county or state peace officer | § 49-504(2) |
| Sales tax | 6% of the sales price | § 63-3619 |
| Farm or snow-removal use | No license or certificate of number required | § 49-426(2) |
| Ordinary annual registration | Not available — barred by § 49-402(10) | — |
Fifteen dollars and seventy-five cents to get on the county road network is, as far as the numbers in this series go, the cheapest road access in the country — if the “recreational” question resolves in your favor. The federal side of the bill is unaffected: the landed cost calculator breaks out duty, fees and freight, and the cost guide works a whole purchase through.
Insurance
Idaho Code § 49-1229 requires every owner of a registered and operated motor vehicle to carry liability insurance “in an amount not less than that required by section 49-117,” and § 49-117(20) sets those amounts:
- $25,000 because of bodily injury to or death of one person in any one accident
- $50,000 because of bodily injury to or death of two or more persons in any one accident
- $15,000 because of injury to or destruction of property of others in any one accident
Written 25/50/15. Section 49-1229(2) also allows an indemnity bond with the Director of the Department of Insurance in place of a policy, guaranteeing not less than $50,000 for any one accident of which $15,000 is for property damage — an option worth knowing exists, though a policy is simpler.
Two practical points. Online quote forms validate VIN length and will refuse a Japanese chassis number, so expect to arrange this by telephone — but an Idaho title in hand makes that conversation much shorter. And ask for agreed-value or stated-value cover rather than actual cash value: there is no book value for a 1999 Japanese-market truck, which is exactly why you do not want a total-loss settlement decided by a valuation guide.
What to Ask, and Who
Idaho splits the answer across three offices, and the split is the reason owner reports conflict.
- County assessor’s motor vehicle office — titling under § 49-504 and the restricted vehicle license plate. Ask: “Will you title a Japanese-market truck on the export deregistration certificate as ‘other evidence of ownership’ under § 49-504(2)?”
- Idaho Department of Parks and Recreation, or an authorized vendor — the § 67-7122 certificate of number. Ask: “Does a Japanese kei truck qualify as a utility type vehicle under § 67-7101, given the word ‘recreational’?” This is the question that decides everything.
- Idaho Transportation Department — the scope of “unless otherwise specifically authorized” in § 49-402(10). Ask whether an OHV plated and numbered under §§ 49-402(4) and 67-7122 is within that phrase.
Get the answers in writing and keep them with the title. And note that the two operative provisions are statutory rather than administrative, which means the position is more stable than in states where a manual decides — but also that changing it takes a bill.
What to Buy for Idaho
Four-wheel drive, without hesitation. The road network Idaho opens without asking permission is the county and forest road network, and the state-highway permission is written around connecting to OHV trails. The off-road guide has the measured 4WD shares by model.
Think about altitude. A naturally aspirated 660 cc engine loses noticeable output above 5,000 feet, and much of Idaho is above it. Supercharged and turbocharged variants hold their output better; the model comparison covers which models offer them.
Heaters and glass matter here. These trucks have small cabs and modest heaters, and a working defroster is not a luxury in an Idaho winter. Check that the heater blows hot and the fan works on every speed before you bid.
Corrosion, read for the state you are in. Idaho salts and sands its highways, though less aggressively than the eastern states. Prefer stock from warm, dry prefectures and read the auction sheet for C codes, which mark corrosion that has gone through metal, rather than the overall paint grade. The Carry guide and the Hijet guide cover what holds up.
For reference, the Japanese side of this market as I measured it across 394 trucks: Subaru Sambar ¥370,000, Honda Acty ¥390,000, Mitsubishi Minicab ¥390,000, Suzuki Carry ¥400,000 and Daihatsu Hijet ¥450,000 at the median. Eligibility comes down to the month of manufacture, which the 25-year rule guide covers, and the fifty-state comparison shows how differently Idaho’s neighbors have handled the same trucks.
Idaho will put a title in your name on the strength of the export certificate, which makes the documents that come with the truck part of what you are buying. CAR FROM JAPAN supplies the export deregistration certificate and the inspector’s auction sheet with each vehicle — the ownership paper § 49-504(2) asks for, and the corrosion codes you want before you bid. My referral code takes $100 off a first purchase: enter KEITRUCK at the order step (referral link).
FAQ
Are kei trucks legal in Idaho?
Not as ordinarily registered vehicles. Idaho Code § 49-402(10) bars registration of any vehicle that does not meet federal motor vehicle safety standards, and § 49-107(5) measures that by manufacturer certification at the time of manufacture. The route that remains is the off-highway vehicle authorization, which is broad, and the farm exemption, which is free.
Will Idaho issue a title?
Section 49-504(2) accepts “other evidence of ownership required by the law of any other jurisdiction” together with a VIN inspection by any city, county or state peace officer. No customs form, bond release letter or compliance statement is named in the statute.
Where can an off-highway vehicle be driven?
Under § 49-426(3): all highways that are not state highways and not interstates; non-full-access-controlled state highways inside a city and one mile beyond, where posted at 60 mph or less; and stretches of no more than five miles on state highways posted at 65 mph or less to connect to trails or reach fuel, lodging, food or maintenance. Crossings are allowed except on interstates and full-access-controlled state highways.
What does it cost to get on the road?
$3.75 for the restricted vehicle license plate under § 49-450 and $12.00 a season for the certificate of number under § 67-7122.
Does a kei truck qualify as a utility type vehicle?
On every measurable element, yes: four tires, 58.1 inches wide against a 50-inch minimum and an 80-inch maximum, and 1,477 lb or more against a 900 lb minimum. The open question is the word “recreational” at the front of the definition. Ask the Department of Parks and Recreation in writing before you buy.
Is there a way to use one without any plate?
Section 49-426(2) exempts off-highway vehicles used exclusively for agricultural, horticultural, dairy and livestock operations, or exclusively for snow removal, from licensing and numbering. Highway travel is limited to travel between farm or ranch locations and a slow-moving vehicle emblem is required.
What insurance do I need?
25/50/15 under §§ 49-1229 and 49-117(20). An indemnity bond filed with the Director of the Department of Insurance is an alternative to a policy.
Has this always been the position?
Section 49-402(10) is statutory and has been on the books for years. What has been wrong is the summarizing — including my own fifty-state table, which listed Idaho as a full-registration state until this page was written. The table now reflects the statute.