Article 2
1. With effect from 1 January 1982, no Member State may, on grounds relating to the permissible sound level and the exhaust system: - refuse to grant EEC type-approval, to issue the document referred to in the last indent of Article 10 (1) of Directive 70/156/EEC or to grant national type-approval, in respect of a type of motor vehicle, or - prohibit the entry into service of vehicles, if the sound level and the exhaust system of this type of vehicle, or the vehicles concerned, comply with the provisions of Directive 70/157/EEC, as amended by the present Directive. 2. With effect from 1 October 1984, a Member State: - shall no longer issue the document referred to in the last indent of Article 10 (1) of Directive 70/156/EEC in respect of a type of motor vehicle in which the sound level and exhaust system do not comply with the provisions of Directive 70/157/EEC, as amended by the present Directive, - may refuse to grant national type-approval in respect of a type of motor vehicle in which the sound level and exhaust system do not comply with the provisions of Directive 70/157/EEC, as amended by the present Directive. 3. With effect from 1 October 1985, Member States may prohibit the entry into service of vehicles in which the sound level and exhaust system do not comply with the provisions of Directive 70/157/EEC, as amended by the present Directive.