Article 2
1. With effect from 1 March 1974 the Member States shall not, on grounds relating to the permissible sound level and the exhaust system: - refuse EEC type-approval, or the delivery of the document referred to in Article 10 (1), second indent, of the Council Directive of 6 February 1970 (70/156/EEC) or the national type-approval for any 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 of these vehicles comply with the provisions of the Council Directive of 6 February 1970 (70/157/EEC) as last amended by this Directive. 2. With effect from 1 October 1974 the Member States: - shall no longer issue the document envisaged in Article 10 (1), second indent, of the Council Directive of 6 February 1970 (70/156/EEC) for a type of vehicle the sound level and the exhaust system of which do not comply with the provisions of the Council Directive of 6 February 1970 (70/157/EEC) as last amended by this Directive, - may refuse the national type-approval of a type of vehicle the sound level and the exhaust system of which do not comply with the provisions of the Council Directive of 6 February 1970 (70/157/EEC) as last amended by this Directive. 3. With effect from 1 October 1975 the Member States may prohibit the first entry into service of vehicles the sound level and exhaust system of which do not comply with the provisions of the Council Directive of 6 February 1970 (70/157/EEC) as last amended by this Directive. 4. The Member States shall adopt and publish the provisions necessary in order to comply with this Directive before 1 March 1974 and shall forthwith inform the Commission thereof.