28. 8. 91 Official Journal of the European Communities No L 239/23 COMMISSION DECISION of 29 July 1991 concerning the guidelines for classification referred to in Article 4 of Directive 90/219/EEC (91/448/BEC) THE COMMISSION OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Economic Community, Having regard to Council Directive 90/219/EEC of 23 April 1990 on the contained use of genetically modified micro-organisms ('), and in particular Article 4 thereof, Whereas, for the purposes of this Directive, genetically modified micro-organisms need to be classified into Groups I and II using the criteria of Annex II and the Guidelines for classification referred to in Article 4 (3); Whereas the Commission is required to establish before the entry into force of Directive 90/219/EEC, these guide- lines for classification ; Whereas the provisions of this Decision have received the favourable opinion of the Committee of Member States representatives in accordance with the procedure laid down in Article 21 of Directive 90/219/EEC, () OJ No L 117, 8. 5. 1990, p. 1. HAS ADOPTED THIS DECISION : Article 1 When a classification of genetically modified micro- organisms is made under Article 4 of Directive 90/219/EEC, the annexed Guidelines for classification should be used to interpret Annex II of Directive 90/219/EEC. Article 2 This Decision is addressed to the Member States. Done at Brussels, 29 July 1991. For the Commission Carlo RIPA DI MEANA Member of the Commission