(25)Some insurance undertakings insert into insurance policies clauses to the effect that the contract will be cancelled if the vehicle remains outside the Member State of registration for longer than a specified period. This practice is in conflict with the principle set out in this Directive, according to which compulsory motor insurance should cover, on the basis of a single premium, the entire territory of the Community. It should therefore be specified that the insurance cover is to remain valid during the whole term of the contract, irrespective of whether the vehicle remains in another Member State for a particular period, without prejudice to the obligations under Member States’ national legislation with respect to the registration of vehicles.