No L 167/22 Official Journal of the European Communities 30.6.75 COUNCIL DIRECTIVE of 16 June 1975 on measures to facilitate the effective exercise of freedom of establishment and freedom to provide services in respect of various activities (ex ISIC Division 01 to 85) and, in particular, transitional measures in respect of those activities (75/368/EEC) THE COUNCIL OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Economic Community, and in particular Articles 49, 57, 66 and 235 thereof; Having regard to the proposal from the Commission; Having regard to the Opinion of the European Parliament (1); Having regard to the Opinion of the Economic and Social Committee (2); Whereas, pursuant to the Treaty, all discriminatory treatment based on nationality with regard to establishment and provision of services is prohibited as from the end of the transitional period; whereas the principle of such treatment based on nationality applies in particular to the right to join professional organizations where the professional activities of the person concerned necessarily involve the exercise of this right; Whereas, moreover, Article 57 of the Treaty provides that, in order to make it easier for persons to take up and pursue activities as self-employed persons, Directives are to be issued for the mutual recognition of diplomas, certificates and other evidence of formal qualifications and for the coordination of the provisions laid down by law, regulation or administrative action in Member States; Whereas, in the absence of mutual recognition of diplomas or of immediate coordination, it nevertheless appears desirable to make it easier to attain freedom of establishment and freedom to provide services for the activities in question, in particular by the adoption of transitional measures of the kind envisaged in the General Programmes (%) in order to avoid causing exceptional difficulties for nationals of Member States in which the taking up of such activities is not subject to any conditions; () OJ No C 45, 10. 5. 1971, p. 12. () O] No C 93, 21. 9. 1971, p. 19. (% OJ No 2, 15. 1. 1962, pp. 32/62 and 36/62. Whereas, in order to prevent such difficulties arising, the object of the transitional measures should be to allow, as sufficient qualification for taking up the acivities in question in host Member States which have rules governing the taking up of such activities, the fact that the activity has been pursued in the Member State whence the foreign national comes for a reasonable and sufficiently recent period of time to ensure that the person concerned possesses professional knowledge equivalent to that required of the host Member State’s own nationals; Whereas this Directive covers two categories of activity, namely: — activities which can be pursued only after fairly extensive professional training and which are therefore subject to stringent regulations in the various Member States of the Community; — activities the pursuit of which does not require such extensive professional training, and provision should therefore be made for two types of transitional measures adapted to these two categories of activity; Whereas the activities of patent buying and licensing companies are conducted as part of the exploitation of inventions and are distinct from the activities usually conducted by banks and other financial institutions; whereas, therefore, although falling within Group 620 of the ISIC Nomenclature, such activities do not come within the scope of Council Directive No 73/183/EEC (*) of 28 June 1973 on the abolition of restrictions on freedom of establishment and freedom to provide services in respect of self- employed activities of banks and other financial institutions; Whereas neither the activities of consultant engineers (ISIC Group 833) nor those of industrial property consultants or patent attorneys (ISIC Group 831) are covered by this Directive; () O) No L 194, 16. 7. 1973, p. 1.