| COC paper (EEC certificate of conformity) |
| An automobile manufacturer must apply for an EC operating permit for all passenger cars (vehicle class M1). |
| A certificate - the so-called COC (Certificate of Conformity) - is issued on the basis of this operating permit. |
| This document certifies that the vehicle conforms with the EC operating permit (EC type approval) and can be registered in every EU country without the need for individual approval. |
| The document is issued for all vehicles produced in accordance with the EC operating permit. |
| These vehicles are marked with an EC type approval (black sticker) on the driver's door; or in the engine compartment on older vehicles. |
| The COC paper has the same significance as the registration documents; the original certificate should therefore not be kept in the vehicle. |
| The COC paper contains the EC type approval number and comprehensive technical vehicle data such as the emission class and all permissible wheel/tyre combinations. |
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