Proving a Japanese car's build date when the papers only show first registration

Japanese papers don't show the month a car was built. The registration certificate and the export certificate give the month it was first registered in Japan, and that's as close as the official documents get. The model plate on our own car doesn't carry a date either.

Whether that matters depends on where the car is going. The United States, New Zealand and the UK will work from a registration date in one way or another. Australia lists a Japanese deregistration certificate among the evidence it looks at. Canada counts a car's age from the month it was built and doesn't say what will do instead of a maker's label, so a Japanese car close to Canada's 15-year line is the hard case.

What the Japanese papers show

• The registration certificate (shaken-sho). Japan's transport ministry (MLIT) publishes a guide to every date printed on the certificate: when it was issued, when it was recorded, the registration date, the month of first registration, and when the certificate expires. There's no build date among them. The first registration month is described as the month the car was first registered.
• The export certificate. The samples NZTA publishes for its inspectors, in the forms used from July 2012 and from January 2023, show a registration date, the month of first registration, the planned export date and the application date. Again, no build date. For how to read the rest of it, see our page on the Japanese export certificate.
• The model plate. Many Japanese cars carry a plate in the engine bay. Ours, on a Toyota Prius α, gives the model code, engine, frame number, colour, trim, plant and transmission codes, and no date. You can see that plate on our page about Japan car history checks.

So the first registration month is the official date you'll usually have. A car is built before it's registered, so the build month is that month or earlier. That's simple logic, not an official rule, and it can't tell you how much earlier.

What each country accepts

Country	How age is counted	What the government says about evidence
United States	25 years "from the date of the vehicle's manufacture" (NHTSA)	If the date isn't on the maker's label, NHTSA suggests an invoice showing when the car was first sold, or "a registration document showing that the vehicle was registered at least 25 years ago". Failing that, a statement from a recognised vehicle historical society
Canada	15 years from "the month and year during which work was completed on the vehicle at the place of main assembly" (CBSA). Model year doesn't count	The date is usually on the maker's statement of compliance label. Without one, "the importer will have to provide additional evidence" to border officers. What counts isn't listed
Australia	Built more than 25 years ago, by month and year (department of transport)	Evidence can include the original sales document, a deregistration certificate in some countries, or a photo of the chassis number or plate from the country of first registration. If the month is missing, December of that year is assumed
New Zealand	20 years from manufacture or first registration outside New Zealand (NZTA's entry certification manual)	Entry certifiers record the date the car was first registered in any country
United Kingdom	Vehicle approval may not be needed if the car "was first registered or manufactured more than 10 years ago" (GOV.UK)	The foreign registration document, for a Japanese car usually the export certificate, goes in with the registration

For the US, a Japanese first registration 25 or more years ago fits one of NHTSA's own examples. For New Zealand and the UK, first registration is one of the dates the rule counts from. For Australia, the export or deregistration certificate is on the department's list, though the rule still counts from the build month. For Canada, a first registration month only tells you the car was built no later than that.

Where a build window can come from

Recall notices. When a Japanese maker files a recall, the notice lists the chassis number ranges affected and the production period for each range. Toyota's 2020 recall for the Corolla Sport, for example, gives the range ZWE211-1030365 to 1030613 and a production period of 5 to 17 December 2019. Toyota adds two notes of its own: the ranges include cars that aren't affected, and the production period isn't the same as when the car was bought. So a recall notice can put a car in a window, if its model had a recall and its number falls in a listed range. It isn't a certificate for that car.

Online build year checkers. Several sites will give you a year or a month from a chassis number. We can't tell you where their dates come from, so we don't rate them. If you plan to rely on one, ask the authority in your country first whether it will accept it.

The maker. We didn't find a published route on the Japanese makers' own help pages for looking up a car's build month. That doesn't mean a dealer or the maker won't help with a particular car. Ask, and get the answer in writing if you can.

Canada: a car close to the 15-year line

If the first registration month is already more than 15 years before the car will reach the Canadian border, the build month is too, because the car was built first. If it's close, the paperwork alone may not prove it. Our reading, not an official rule: before the car ships, ask the CBSA what evidence it will accept for that car, and give yourself a margin for the time at sea.

What this page can't tell you

• Whether a particular document will be accepted. That's the border authority's decision in each country.
• The exact build month of a particular car. If the papers don't show it, we can't produce it.
• Whether a build year checker is right. We don't test them.
• Anything about the car's condition. Dates on paper don't tell you what's under the car. That's the part that only shows up close.

Close to an age line and not sure what the car is? Send us the listing. On a viewing we photograph the chassis number and the model code plate as they are on the car. We don't assign a build date. See how a viewing works.

Send us the listing link

What to ask the seller before you buy

• A clear copy of the export certificate or the Japanese registration details, showing the first registration month
• A photo of the model plate and of the chassis number stamped on the body, so you can match them
• Whether the car appears in any of the maker's recall notices, and which range
• Anything else that shows when it was built, such as the original sales paperwork

Written by Yoshiaki Sagara, a paintless dent repair and detailing technician in Japan. He looks at cars for overseas buyers through Ninja Desk Japan. About us

Send us the listing link