1. In implementing the provisions of this Directive, Member States shall ensure, subject to paragraphs 2 and 3, that no mandatory requirements for specific technical features are imposed on terminal or other telecommunications equipment which could impede the placing of equipment on the market and the free circulation of such equipment in and between Member States.
2. Where provisions of this Directive can be implemented only by requiring specific technical features, Member States shall inform the Commission according to the procedures provided for by Directive 83/189/EEC [OJ L 109, 26.4.1983, p. 8. Directive as last amended by Directive 94/10/EC (OJ L 100, 19.4.1994, p. 30)] which lays down a procedure for the provision of information in the field of technical standards and regulations.
3. Where required, the Commission will ensure the drawing up of common European standards for the implementation of specific technical features, in accordance with Community legislation on the app