The contact committee set up pursuant to Article 52 of Directive 78/660/EEC shall also, when constituted appropriately, have the following functions:

(a) to facilitate, without prejudice to Articles 169 and 170 of the Treaty, harmonized application of this Directive through regular meetings dealing in particular with practical problems arising in connection with its application;

(b) to advise the Commission, if the need arises, on additions or amendments to this Directive.