Wheels and Tyres Guide - General Information

COC document (EEC Certificate of Conformity)

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Manufactures of motorized vehicles must apply for an EU operating permit for all class M1 passenger carrying vehicles. A certificate is produced on the basis of this operating permit - the COC (Certificate of Conformity). This document certifies that the vehicle complies with the EU operating permit (EU type approval) and can be registered in every EU country without an individual type approval. The document will be issued for all vehicles that comply with the EU operating permit. These vehicles have an EU type plate (black sticker) in the area of the driver's door, or in the case of older vehicles, in the engine compartment. The COC document has the same value as the registration document and therefore the original should not be carried on the vehicle. The COC document provides detailed technical data and all permissible wheel and tyre combinations.

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