Tax and Import
The Twenty Five Year Rule and the Show or Display Exemption
The age runs from the month and year of manufacture, not the model year. Two agencies, two clocks, and the one people confuse is 21 years rather than 25.
The rule everyone knows is the one that is most often misapplied. Under 49 CFR 591.5(i), a motor vehicle may be imported outside the federal safety standards when the vehicle is 25 or more years old. The age is counted from the month and year of manufacture rather than from the model year, which moves eligibility by up to a year on a great many cars.
The clock that matters
The text says 25 or more years old, and the practical question is: old from when. It runs from the month and year the vehicle was manufactured. A car built in November 2001 and sold as a 2002 model becomes eligible in November 2026, not in January of that year and not on the model year anniversary.
Two consequences follow, and both cost money when they are missed:
- Shipping arranged against the model year can arrive early. A car landing before eligibility is a car in a bonded situation with storage running.
- The build date has to be evidenced, not asserted. It is normally on the vehicle's own plate, and that is the document the process runs on.
Two agencies, two clocks
The single most common error in this subject is treating one date as covering the whole import. It does not. Safety standards and emissions are administered separately.
| Question | Safety standards | Emissions |
|---|---|---|
| Authority | 49 CFR 591.5(i) | separate agency and rules |
| Age test | 25 years or more | over 21 years, on the separate route |
| Counted from | month and year of manufacture | vehicle age |
| Alternative route | Show or Display, 49 CFR Part 593 |
The gap between 21 and 25 is 4 years, and it is the gap in which people believe a car is importable when only half of the requirement is met. Clearing one agency's test says nothing about the other's.
Show or display, and what it costs in use
49 CFR Part 593 provides a route for vehicles held to be of historical or technological significance to be admitted before they reach 25 years. It is a small list rather than a general exemption, and admission is decided vehicle by vehicle against published determinations.
The trade is use. A vehicle admitted on this basis is subject to mileage restriction, which is the point where owners discover that an exemption designed for display is not a substitute for eligibility. On a car covering 2,000 miles a year, that restriction may be irrelevant. On a car intended to be driven, it changes what was bought.
The arithmetic of waiting
For a car close to the threshold, waiting is often the cheapest route available, and it can be quantified. Assume a car worth 250,000 and depreciating at the published supercar rate of about 7 points a year in years two and three, flattening later. Against that, the cost of the alternatives:
- Waiting for eligibility: the car continues to move with its market, and the import route costs what it costs at that date.
- Importing under a limited exemption: adds process cost and attaches a use restriction that is permanent for as long as the car stays on that basis.
- Buying a car already in the country: pays somebody else's import cost, in exchange for certainty and a car that can be inspected.
On a car more than a year or two from eligibility, the third option is usually the honest comparison rather than the first.
Questions readers ask
How does the US 25 year import rule work?
Under 49 CFR 591.5(i) a vehicle may be imported outside the federal safety standards when it is 25 or more years old. The age is measured from the month and year of manufacture, not from the model year.
Does the model year count?
No, and this is where most errors arise. A car built in November 2001 and sold as a 2002 model becomes eligible in November 2026. The build date is normally recorded on the vehicle's own plate and is the document the process relies on.
What is Show or Display?
A route under 49 CFR Part 593 for vehicles determined to be of historical or technological significance, allowing admission before 25 years. It is decided vehicle by vehicle rather than being a general exemption, and it carries a mileage restriction.
Where does the 21 year figure come from?
From the emissions route, which is a different agency with different rules from the safety standards test. The two are regularly confused, and clearing one says nothing about the other. The gap between them is four years.
Can I drive a Show or Display car normally?
Not without regard to the mileage restriction attached to that route. On a car covering very little distance that may not matter. On a car bought to be used it changes what the purchase actually delivers.
Is it cheaper to buy a car already in the country?
Often, on a car that is not close to eligibility. It pays someone else's import cost in exchange for certainty, an inspectable car and no waiting, and it avoids a use restriction attached to a limited exemption.
Sources
- 49 CFR 591.5, declarations required for entry, for the text admitting a vehicle that is 25 or more years old outside the federal safety standards.
- 49 CFR Part 593, determinations for show or display, for the route admitting vehicles of historical or technological significance before 25 years.