Förhandsavgörande "Registrering av fordon — Nationellt intyg om avgasgodkännande — Förenlighet med direktiv 70/156/EEG" (femte avdelningen) ###>It is clear from Article 7(1) and (3) of Directive 70/156 that a Member State may refuse to register a vehicle with a valid Community typeapproval certificate only if it finds that the vehicle is a serious risk to road safety.