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CoC Documents: The Key to EU-Wide Vehicle Registration

Explore the importance of the Certificate of Conformity (CoC) for vehicle registration across the EU.

Theresa Ferner | Feb 18, 2025 | 4 min read

Table of Contents

The registration of a vehicle within the European Union can be significantly simplified with a Certificate of Conformity (CoC). This document, also known as a conformity certificate, is essential for the seamless import, export, sale, and registration of vehicles across EU borders.

In this article, we explain the importance of CoC papers, what information they contain, and why they are crucial for used car dealers and the professional vehicle trade.

1. Understanding CoC Papers

What is a CoC Paper?

The Certificate of Conformity (CoC) is an official document issued by vehicle manufacturers. It certifies that a vehicle meets EU regulations, particularly regarding technical specifications and safety standards.

The primary purpose of a CoC document is to simplify vehicle registration in any EU member state, eliminating the need for additional technical inspections.

What Information Does a CoC Document Contain?

A CoC paper includes detailed technical information about the vehicle, such as:

  • Vehicle Identification Number (VIN)
  • Manufacturer details and type approval number
  • Technical specifications (dimensions, engine power, weight, fuel type, or battery capacity)
  • Emissions data (CO₂ emissions, pollutant classifications, environmental certifications)
  • Approved tire and wheel combinations

2. The Importance of CoC Papers for Vehicle Trading

CoC Documents for New Vehicles

For a new vehicle purchased within the EU, a CoC document is mandatory. It allows for smooth initial registration without additional technical verifications or certifications.

CoC Documents for Used Vehicles

When buying or selling a used vehicle within the EU, the absence of a CoC paper can cause delays or extra costs during registration. This is especially relevant for cross-border vehicle trading within the EU.

Practical Tips for Dealers:

  • Contractual Agreement: When purchasing used vehicles, ensure that the CoC document is included in the contract.
  • Document Verification: Always check that the CoC details match the Vehicle Identification Number (VIN) to avoid issues.
  • Reordering a CoC: If a CoC is missing, it can usually be requested from the vehicle manufacturer or an authorized agency. Costs vary depending on the brand and model.

3. CoC Papers in Practice

How to Request a CoC Document

If a CoC is lost or was not provided when purchasing a used vehicle, it can typically be obtained directly from the vehicle manufacturer.

Steps to Obtain a CoC:

  1. Submit a request to the manufacturer (via online form or official dealership).
  2. Provide proof of vehicle ownership (VIN, vehicle registration certificate).
  3. Pay the processing fee (varies by manufacturer).
  4. Receive the CoC document by mail or digitally.

Vehicle Registration With and Without a CoC

  • With a CoC: Registration is quick and straightforward in any EU country since the document confirms compliance with EU standards.
  • Without a CoC: Additional technical inspections or certifications may be required, leading to higher registration costs and delays.

Best Practices for Managing CoC Papers

  • Safe Storage: Keep CoC papers in a secure place, as they are essential for registration or resale.
  • Make Copies: Retain a digital or physical copy of the CoC separate from the original.
  • Check Before Purchase: Always confirm the availability of a CoC when buying a vehicle to avoid future registration issues.

Cardino’s Role

Cardino simplifies the buying and selling process for used car dealers. Our platform enables dealers to quickly and efficiently expand their inventory with high-quality used vehicles, especially EVs. Thanks to our optimized sales process, dealers can acquire vehicles hassle-free without extensive negotiations or unnecessary formalities.

Conclusion

CoC papers are an essential document for professional vehicle trading within the EU. They not only simplify the registration of new and used vehicles but also help dealers and buyers comply with legal and administrative requirements.

For cross-border vehicle transactions, CoC documents are indispensable. Dealers should always ensure that the required documentation is available to avoid bureaucratic obstacles and unnecessary costs.

FAQs

What exactly is a CoC paper, and why is it required?

The Certificate of Conformity (CoC) is an official document issued by the manufacturer, confirming that a vehicle complies with EU standards. It is required for vehicle registration and trading within the EU.

Can I register a vehicle in the EU without a CoC paper?

Yes, but registration will be significantly more complicated. Without a CoC, the vehicle’s technical specifications must be verified through an independent inspection, resulting in additional costs and delays.

Where can I order a lost CoC document?

A CoC can be requested directly from the vehicle manufacturer or an authorized agency. The price depends on the brand and model.

What information is included in a CoC document?

The CoC contains technical specifications, including the VIN, manufacturer details, emissions data, and registration-relevant information.

Do I need to carry the CoC document in my vehicle at all times?

No, it is not legally required to carry a CoC in the vehicle. However, it should be stored securely, as it is needed for registration and resale.