Opinion of the Commission pursuant to Article 189 b(2)(d) of the EC Treaty, on the European Parliament's amendments to the Council's common position regarding the proposal for a European Parliament and Council Directive establishing a mechanism for the recognition of qualifications in respect of the professional activities covered by the directives on liberalisation and transitional measures and supplementing the general systems for the recognition of qualifications. Amending the proposal of the Commission pursuant to Article 189 a (2) of the EC Treaty. COM (98) 640 final, 13 November 1998