No L 92/42 Official Journal of the European Communities 13. 4. 91 COMMISSION DIRECTIVE of 19 March 1991 amending for the fifth time the Annex to Council Directive 79/117/EEC prohibiting the placing on the market and use of plant protection products containing certain active substances (91/188/EEC) THE COMMISSION OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Economic Community, Having regard to Council Directive 79/117/EEC of 21 December 1978 prohibiting the placing on the market and use of plant protection products containing certain active substances ('), as last amended by Directive 90/533/EEC (3, and in particular Article 6 thereof, Whereas the development of scientific and technical knowledge makes necessary certain amendments to the Annex to Directive 79/117/EEC; Whereas it seems desirable to delete the remaining temporary derogations from the prohibitions laid down in the Directive since less hazardous treatments are now available ; Whereas all Member States have informed the Commis- sion that they do not intend or no longer intend to avail . themselves of these derogations ; Whereas the measures provided for in this Directive are in accordance with the opinion of the Standing Committee on Plant Health, HAS ADOPTED THIS DIRECTIVE : Article 1 In Part A of the Annex to Directive 79/117/EEC, ‘Mercury compounds’, the text in column 2 is hereby deleted. Article 2 Member States shall, not later than 31 March 1992, bring into force the laws, regulations and administrative provi- sions necessary to comply with this Directive. They shall immediately inform the Commission thereof. When Member States adopt these measures, these shall contain a reference to this Directive or shall be accompa- nied by such reference at the time of their official publi- cation. The procedure for such reference shall be laid down by Member States. Article 3 This Directive is addressed to the Member States. " Done at Brussels, 19 March 1991. For the Commission Ray MAC SHARRY Member of the Commission () OJ No L 33, 8. 2. 1979, p. 36. () OJ No L 296, 27. 10. 1990, p. 63.