11/03/2004
Navigating the complexities of vehicle documentation can often feel like a daunting task, especially with the increasing number of Clean Air Zones (CAZ) and the Ultra-Low Emissions Zone (ULEZ) across the UK. Whether you're planning to drive in London, Bath, Birmingham, Bradford, Bristol, Portsmouth, Sheffield, or Tyneside, a specific document might be the key to avoiding unexpected fees and fines: the Certificate of Conformity (CoC).

But what exactly is this crucial document? What vital information does it convey, and how does one go about obtaining a duplicate, especially if it's gone missing? This comprehensive guide aims to demystify the Certificate of Conformity, answering all your pressing questions and providing a clear roadmap to ensure your vehicle is fully compliant.
- What is a Vehicle's Certificate of Conformity (CoC)?
- When Do You Need a Certificate of Conformity?
- How to Obtain a Certificate of Conformity for Different Car Brands in the UK?
- Key Information the CoC Must Contain
- Frequently Asked Questions About the Certificate of Conformity
- Wrapping Up: How to Obtain a Vehicle's Certificate of Conformity (CoC) in the UK
What is a Vehicle's Certificate of Conformity (CoC)?
A Certificate of Conformity (CoC) is an indispensable document issued directly by the vehicle's manufacturer. Its primary purpose is to officially verify that a vehicle, at the time of its production, fully complies with the relevant EU regulations concerning environmental and safety standards. This compliance is paramount, as the CoC enables the vehicle's legal registration in the UK.
The Driver and Vehicle Licensing Agency (DVLA) specifically requires a CoC to support the initial registration of any new vehicle in the UK. This is because the document provides critical details, such as whether the vehicle is designed for left-hand drive traffic, thereby confirming its suitability for UK roads. A typical CoC is a detailed document, providing a wealth of information that goes beyond what's found on your V5 vehicle registration document. Key details often include:
- Vehicle Mass
- Overall Dimensions (length, width, height)
- Engine Size and Power
- Technical Performance data, such as official fuel consumption figures or electric range
- Manufacturer Details (name and address)
- Date of Manufacture
- European type-approval number, indicating if the vehicle has been modified
- Information on emissions, noise levels, and compliance with European regulations (e.g., Euro 6)
- Vehicle safety equipment (active and passive)
To prevent forgery and ensure authenticity, a genuine CoC should always feature a watermark or hologram. It also indicates whether the vehicle is equipped for left-hand traffic and has an imperial speedometer, confirming its design for the UK market.
When Do You Need a Certificate of Conformity?
The Certificate of Conformity isn't just for new vehicle registrations. There are several scenarios where you might find yourself in urgent need of this document:
- Exporting a Vehicle: If you're planning to export your vehicle from the UK to another country, particularly within the European Union or European Economic Area, a CoC is often a mandatory requirement for re-registration in the new country.
- Importing a Vehicle: Conversely, if you're importing a vehicle into the UK, especially one previously registered abroad, the DVLA will require evidence of type approval, and a CoC serves this purpose effectively to allow its first registration for use on UK roads.
- Changing Vehicle Ownership (Re-importing): Should you return to the UK with a vehicle that was previously registered in the UK but then exported, you might need a CoC to facilitate the change of ownership and re-registration process.
- Taxi or Private Hire Licence Applications: For those looking to operate a vehicle as a taxi or private hire vehicle, the licensing authorities often require a CoC to verify the vehicle meets specific safety and compliance standards.
- Clean Air Zone (CAZ) & Ultra-Low Emission Zone (ULEZ) Compliance: This is a growing area of concern for many drivers. A CoC can be crucial in proving your vehicle's compliance with ULEZ, CAZ, or Low Emission Zone (LEZ) standards, helping you avoid daily charges and fines. Without it, your vehicle might be assumed to be non-compliant.
- Congestion Charge Discounts or Residential Permits: In certain urban areas, a CoC may be required to register your vehicle for specific discounts on congestion charges or to obtain residential parking permits, especially if these are linked to vehicle emissions.
- Specific Vehicle Information Requests: If authorities or insurance companies request specific technical details about your vehicle that are not adequately documented on your V5C logbook, the CoC is the definitive source for this information.
How to Obtain a Certificate of Conformity for Different Car Brands in the UK?
When you purchase a new vehicle, it is a legal requirement for the car supplier to provide the Certificate of Conformity document at the point of delivery, typically free of charge. However, the situation changes when you acquire a used car or if your original CoC has gone missing.

In such cases, you will likely need to request a duplicate CoC directly from the vehicle's manufacturer. It's important to note that manufacturers are legally obligated, post-Brexit (following the adoption of EU Directive 2007/46/EC into UK law), to supply duplicate CoCs upon request for up to 10 years following the vehicle's production. The cost and processing time for obtaining a duplicate CoC can vary significantly between manufacturers.
To assist you, we've compiled a comprehensive list detailing how to apply for duplicate CoCs from many popular car brands in the UK:
Table: Obtaining a Duplicate Certificate of Conformity from Manufacturers
| Manufacturer | How to Apply | Documents Required | Fee (Approx.) | Estimated Delivery Time |
|---|---|---|---|---|
| Toyota | Fill out the COC application form and send to [email protected]. | Full V5C logbook or proof of registered keeper status. | £75 (incl. VAT) | 5-7 days |
| Volkswagen | Email [email protected]. | Chassis number, REG number, full name, address. | Not specified | A few days to 2 weeks |
| Suzuki | Fill out the application form and return to Suzuki Customer Services as per instructions. | Vehicle registration number. | £95 (incl. VAT) | Up to 25 business days |
| Ford | Email [email protected] a blank email for instructions. | Your name, full postal address, daytime contact number. | No fee | Up to 6 business days |
| Mini | Email [email protected]. | REG number, chassis number, technical info for non-UK vehicle. | £100 (non-UK reg), Free (UK reg) | Up to 10 business days |
| Mazda | Email [email protected] with reason for request and export country (if applicable). | Your address, email, phone number, scanned/photo copy of V5C. | £85 (incl. VAT) | Up to 10 business days |
| BMW | Email [email protected]. | REG number, chassis number, technical info for non-UK vehicle. | £100 (non-UK reg), Free (UK reg) | A few days to 2 weeks |
| Dacia | Fill out the online application form for a certificate of conformity. | Vehicle registration number, scanned V5C, driving licence, utility bill, bill of sale, VIN plate photo. | Free (UK spec), Up to £100 (non-UK) | 7 working days (UK spec), 6 weeks (non-UK) |
| Vauxhall | Apply through the PSA Group website (online form). | Personal details (name, address), vehicle details (REG, VIN). | £195 (incl. VAT) | Not specified |
| Skoda | Email [email protected]. | REG number, full name, address, chassis number, make. | Not specified | Up to 5 business days |
| Mercedes-Benz | Apply through the Mercedes-Benz UK website (online form). | Copy of Passport/Driving Licence/ID card, MOT/Insurance Certificate showing chassis number. | £144 (incl. VAT) | Up to 21 working days (most models), Up to 8 weeks (others) |
| Land Rover | Apply for a duplicate COC online on the Land Rover ownership site. | Vehicle registration number, VIN number, personal details. | £159 (incl. VAT) | Not specified |
| Alfa Romeo | Email [email protected]. | Your name, full postal address, daytime contact number, scanned V5C/proof of ownership, VIN plate photo. | £120 (incl. VAT) | Up to 18 business days |
| Fiat | Apply through the Fiat owners UK website. | Your name, full postal address, daytime contact number, scanned V5C/proof of ownership, VIN plate photo. | £120 (incl. VAT) | Up to 15 business days |
| Audi | Email [email protected]. | VIN number, full name, address, make, registration number. | Not specified | A few days to 2 weeks |
| Lexus | Fill out the COC application form and send to [email protected]. | Full V5C logbook or proof of registered keeper. | £75 (incl. VAT) | 5-7 days |
| Jaguar | Contact Jaguar UK Customer Relations. | Vehicle registration number, personal details. | £195 (incl. VAT) | Up to 8 business days |
| Peugeot | Apply through the PSA Group website (online form). | Personal details (name, address), vehicle details (REG). | £195 (incl. VAT) | Not specified |
| Volvo | Contact Volvo UK via their official website and make a request. | REG number, personal details, car’s model type, chassis number. | £185 (incl. VAT) | Up to 7 working days |
| Honda | Contact Honda UK via their official website. | Vehicle registration number, chassis number, personal details. | £150 (incl. VAT) | Up to 6 business days |
Key Information the CoC Must Contain
The Certificate of Conformity is a highly detailed document that encapsulates both technical, environmental, and safety aspects of a vehicle. Among the most important data points you'll find on a CoC are:
- The Vehicle Identification Number (VIN) or chassis number, which uniquely identifies your vehicle.
- The European type-approval number, confirming the vehicle's standard un-modified status.
- The make, model, and specific version of the vehicle.
- Comprehensive details of the manufacturer.
- Technical specifications of the engine, including engine size, power output, and fuel type.
- Precise vehicle dimensions (length, width, height).
- The total weight and maximum load capacity of the vehicle.
- Detailed information on emissions, fuel consumption, and compliance with the latest European regulations, such as Euro 6.
- A breakdown of the vehicle's active and passive safety equipment.
This wealth of information makes the CoC an invaluable record, often required by regulatory bodies, vehicle dealers, and even individual owners for various administrative and compliance purposes.
Frequently Asked Questions About the Certificate of Conformity
Do I need a Certificate of Conformity if I import my car from the United Kingdom?
Yes, if you are importing a car from the United Kingdom into an EU or EEA country, you will most likely need a European Certificate of Conformity. While the UK is no longer part of the EU, the European Certificate of Conformity is still widely accepted for vehicles manufactured to EU standards. However, it's worth noting that future revisions to this law are anticipated, with the UKCA marking expected to regulate products manufactured in the UK from 2024.
Do I need a Certificate of Conformity if I bring my car from Morocco, Dubai, Japan, Canada, or the United States?
If you're bringing your vehicle into any EU or EEA country from a non-EU or non-EEA country (such as Morocco, Dubai, Japan, Canada, or the United States), the procedure for registration is different. You will first need to obtain individual approval for your vehicle, as it may not have been manufactured to EU type-approval standards. Once individual approval is granted, you can then proceed to obtain a CoC to register your vehicle and drive legally within the EU or EEA.

Why do I need a new CoC if it's always provided with a new car?
While the manufacturer is legally required to provide a CoC free of charge with every new car delivered, this document can often be misplaced or lost over time. In the case of purchasing a used vehicle, especially through a private sale, the seller may simply forget to provide it, or they may not have received it themselves if it was lost by a previous owner. Therefore, you might need to obtain a duplicate CoC for administrative purposes, such as re-registering the vehicle, proving compliance for emission zones, or exporting it.
Wrapping Up: How to Obtain a Vehicle's Certificate of Conformity (CoC) in the UK
The Certificate of Conformity is a cornerstone document in vehicle ownership, particularly within the dynamic landscape of UK motoring regulations. While you typically receive one for free when purchasing a new car, the need for a duplicate is a common occurrence, whether you've lost the original, are buying a used vehicle, or require it for specific administrative purposes like navigating Clean Air Zones.
Fortunately, most vehicle manufacturers uphold their legal obligation to provide replacements, generally for a fee, for up to 10 years following the vehicle's production date. The process and associated costs can vary significantly from one brand to another, as detailed in our comprehensive table above.
Armed with a valid CoC, you can confidently navigate the UK's emission zones, register your vehicle, and ensure full compliance with regulatory standards. Understanding what a CoC is, when it's required, and how to obtain one is an essential part of responsible vehicle ownership in the modern era.
If you want to read more articles similar to Your Guide to a Vehicle's Certificate of Conformity, you can visit the Automotive category.
