Reviewed: September 2026.
Registering a vehicle from a Stellantis brand raises two questions that a generic document checklist does not resolve: which brand and manufacturer records belong to the individual vehicle, and whether the file describes the base vehicle or its completed configuration. Shared group ownership or similar engineering does not make certificates interchangeable.
This guide focuses on those cross-brand and conversion issues. Use the COC reference guide for document definitions and the destination guides below for the full registration procedure.
One automotive group does not mean one interchangeable COC
Examples across the group include Peugeot, Citroën, Opel, Fiat, Jeep and Alfa Romeo. The document you need must identify the actual manufacturer or responsible issuer, VIN or chassis identifier, approved type and relevant vehicle configuration. A certificate for a related model cannot be used as evidence for a different vehicle.
Likewise, a European brand name does not establish that every vehicle was built for the EU market. Ask about the original market and approval history of imported variants, not just the location of the current seller.
Base vehicle, completed vehicle or later conversion?
For a van-based motorhome or other converted vehicle, identify which stage each document covers. The chassis manufacturer, final-stage manufacturer and later converter may have different roles. Ask for the applicable records before assuming that the original van document describes the finished vehicle.
| Vehicle situation | Useful check | Avoid this assumption |
|---|---|---|
| Peugeot Boxer or Citroën Jumper conversion | Compare the base-vehicle record with the documented final body, seating and masses. | The original van certificate covers every camper conversion. |
| Fiat Ducato motorhome | Identify the final-stage manufacturer and the records supplied for the completed vehicle. | A chassis technical sheet grants approval to the finished motorhome. |
| Opel vehicle with a related Vauxhall model | Preserve the make, VIN and approval identity actually shown in the vehicle file. | A similar badge or model can be substituted on the paperwork. |
| Jeep or Alfa Romeo imported from another market | Check the actual market specification, approval history and later modifications. | European group ownership proves EU COC eligibility. |
Keep these fields consistent across the file
- Identity: VIN or original chassis identifier, make, manufacturer and model.
- Configuration: vehicle category, body description, seating and conversion history.
- Masses: the applicable vehicle, axle and towing figures, without mixing base and completed versions.
- Powertrain: engine, electric or hybrid fields using the definitions requested by the authority.
- Approval references: the records applicable to this vehicle, not a specification copied from a similar model.
If two records disagree, identify who issued each and which configuration it describes. Keep originals intact and ask the responsible issuer or assessing body to resolve the difference. Do not silently overwrite the older value in a scanned certificate.
Manufacturer documents and independent technical data
An official manufacturer COC or duplicate is a different product from COC Europe’s Complete Data Sheet. Manufacturer services may also offer other documents with narrower or different purposes. Read the document description rather than treating every homologation-related product as a COC.
The Stellantis homologation service terms describe its document services. Confirm the current service and eligibility for the VIN directly with the responsible brand or authorised representative.
A CdS consolidates technical specifications for an appropriate assessment or registration file where accepted. It does not issue type approval, certify every conversion or replace a manufacturer document simply because the original is missing. For an accepted technical-data requirement, review the relevant product: Peugeot CdS, Citroën CdS, Opel CdS or Fiat CdS. Check the vehicle category before selecting a product.
The technical file is only part of registration
Keep ownership evidence, previous registration documents, applicant details, applicable fiscal or customs documents, inspection records and insurance evidence organised separately. Which items are required depends on the destination and vehicle history; this is a preparation checklist, not a universal legal requirement.
Continue with the guide for France, Germany, Italy or Ireland. A shared platform does not remove those national procedures.
Before asking for a document
Send the actual vehicle identity, existing documents, original market, intended destination and the authority’s precise requirement. For conversions, include who completed the vehicle and what changed. Ask whether the request concerns a manufacturer conformity document, missing technical data or an approval assessment. Those answers determine the next step more reliably than the group badge alone.
