Somewhere in your research someone has said you will need a model report, or a letter from the manufacturer, before your import can pass its IVA test. It sounds expensive, and it sounds like something nobody can explain properly. Many imports never need either. For the ones that do, there is a set route, and knowing which applies to your car is most of the work.
It all comes down to one question the DVSA asks: how will this car show it meets the standard?
Basic or normal IVA decides it
GOV.UK describes two levels of IVA inspection. Which one your car takes decides whether paperwork is needed at all.
Basic IVA is a visual inspection with some specific tests, such as emissions, carried out at the test site. You will not normally need to provide documentary evidence. It applies to certain classes of vehicle, including left-hand drive vehicles, personal imports, kit cars, motor caravans and very low volume vehicles.
Normal IVA applies to everything else, including mass-produced cars imported on a commercial basis. On top of the basic checks, the car has to meet extra standards for brakes, crash safety, seat belt installation and anchorages, exhaust emissions including CO2, noise, and anti-theft protection. The DVSA cannot test most of those in the lane, because they need special facilities, so it asks for documents instead.
| Feature | Basic IVA | Normal IVA |
|---|---|---|
| How it works | Visual inspection and specific tests | Basic checks plus extra standards |
| Documentary evidence | Not normally needed | Needed for the extra items |
| Typical imports | Left-hand drive cars, personal imports, motor caravans | Right-hand drive cars that are not personal imports |
Who counts as a personal import
The DVSA's definition is narrower than the everyday meaning. Broadly, the car must be imported by the person applying, who has lived outside the UK for at least 12 months, intends to live here, and has owned and used the car abroad for at least 6 months, for personal or household use.
That will sound familiar if you have read about Transfer of Residence. Someone moving to the UK with their own car often fits it. Someone buying a car abroad to bring over usually does not.
Left-hand drive helps. The DVSA's guide notes that left-hand drive vehicles only need a basic IVA examination, which is one reason many American imports do not need a model report at all.
The ways a car can prove compliance
For normal IVA, the DVSA's guide lists the routes, and a car can use more than one:
- Directive compliance: showing it meets the European approval standards
- Comparable standards: showing it meets non-European standards the DVSA treats as equivalent
- A comparison test: checking it against a known type-approved vehicle
- A directive test: having the test itself carried out
- A model report: using data already gathered on a car of the same specification
- A visual inspection, or a combination of these
The right one depends on where the car was built, the market it was built for and its age.
Cars from Japan
For a used Japanese car, the DVSA accepts the original Japanese export certificate as evidence of Japanese type approval for the items where that approval is treated as comparable. It needs to show the car's specification and classification numbers, and the car must not have been modified in a way likely to undo that approval.
If those numbers only appear in Japanese in the remarks box, the DVSA asks for an official translation. If they are missing altogether, other evidence is needed. Our guide to the Japanese export certificate explains why we want a copy early.
Cars from North America and elsewhere
The DVSA recognises some safety standards in the United States, Canada and Australia as close enough to Europe's. For a car from North America, compliance with the US or Canadian federal safety standards can be shown by the qualifying standards on the original manufacturer's plate.
The guide is more cautious about other markets. It says vehicles from Middle Eastern countries may not be designed to European standards, and vehicles built for developing countries will probably need testing to most of the normal IVA requirements. Some may not be convertible at a sensible cost.
Model reports
A model report lets one tested car vouch for another. A designated technical service tests or compares a master vehicle, and the DVSA compiles the results into a report listing component descriptions, code numbers and other identifying features, with photographs or drawings.
When your car is presented, the examiner checks that its specification matches the report in all the relevant respects. If it matches, it passes on those items. If not, it fails, and further changes or other evidence are needed.
- Who owns them: whoever paid for the testing. GOV.UK says that if a report exists for your exact model, you may be able to use it for a fee.
- Permission: the DVSA only uses someone else's report where there is a written agreement between the two parties, sent to the DVSA.
- Compliance checks: a car presented against a model report may be picked for a full check. It is then left at the test site and taken to a technical service to be checked against the report.
The word that matters is exact. A report for the same model in a different market specification may not match the car in front of the examiner.
Manufacturer letters
The manufacturer comes into it in a few places. If a car carries a European type approval number on its VIN plate, the DVSA will try to confirm with the manufacturer that the number covers the relevant requirements. If it cannot, other proof is needed.
For larger vans, trucks and passenger vehicles, the guide says a letter from the manufacturer specific to the vehicle, confirming it meets the relevant directives, can serve as evidence. For anti-theft on a passenger car, the evidence can come from the manufacturer, or an immobiliser can be fitted instead.
Separately, a manufacturer's letter can help the DVLA establish when a car was built if the original registration document is missing. That is a registration question rather than an IVA one, covered in our guide to registering an imported car.
When there is no paperwork
If a car has no usable approval evidence and no comparable approved vehicle, the fallback is testing at a designated technical service. Some of these tests are destructive: protective steering and side impact, frontal impact and seat belt anchorages. That is why it pays to know the route before a car is bought, not after it lands.
Evidence to gather before shipping
0 of 6 done
If the car fails
A car that does not pass is given a notification of refusal listing the items that fell short. The DVSA allows a re-examination within 6 months of that first refusal, for a partial fee. Some items, and failures caused by missing documentary evidence, are re-examined free if the car comes back to the same test site within a short window.
If you disagree with the result, GOV.UK allows an appeal within 14 days, and the car must not be modified before the appeal inspection. In practice, putting the fault right is usually quicker.
We run one of only seven privately operated IVA centres in Great Britain, and the DVSA tests on our site every week. The car never leaves us between the workshop and the lane, so a retest can follow the fix almost straight away. Our guide to the IVA test covers what the examiner looks at and what fails most often.
Questions people ask
What is an IVA model report?
A report compiled by the DVSA from tests on a master vehicle of the same specification. At the test, the examiner checks your car matches the report. If a report exists for your exact model, the owner may let you use it for a fee.
Does my import need a model report?
Often not. Basic IVA, used for left-hand drive cars and personal imports among others, does not normally need documentary evidence. Normal IVA needs evidence, which can come from an export certificate, approval markings, a model report or testing.
Do I need a letter from the manufacturer for IVA?
Not usually for a car. The DVSA tries to verify European type approval with the manufacturer itself. A vehicle-specific manufacturer letter is mainly used as evidence for larger vans, trucks and passenger vehicles.
How does a Japanese car prove compliance?
With the original export certificate showing its specification and classification numbers, provided the car has not been modified in a way that affects its approval. A translation is needed if the numbers only appear in the remarks box.
What happens if the evidence is not accepted?
The car is refused on those items and other evidence or testing is needed. The DVSA allows a re-examination within 6 months, and a failure caused by missing documents can be re-examined free if the car returns quickly to the same site.
Not sure which route your car takes? Send us the details on the quote form and we will look at the evidence before it ships.
