27. 3. 92 Official Journal of the European Communities No L 82/69 (Acts whose publication is not obligatory) COMMISSION COMMISSION DIRECTIVE 92/17/EEC of 17 March 1992 amending Directive 66/403/EEC on the marketing of seed potatoes THE COMMISSION OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Economic Community, Having regard to Council Directive 66/403/EEC (") of 14 June 1966 on the marketing of seed potatoes, as last amended by Commission Directive 91/127/EEC (%), and in particular Article 15 (2a) thereof, Whereas in principle, with effect from certain dates, Member States may no longer determine for themselves the equivalence of seed potatoes harvested in third coun- tries with seed potatoes harvested within the Community and complying with that Directive ; Whereas, however, since work to establish Community equivalence for all the third countries concerned had not been completed, Article 15 (2a) of that Directive permitted Member States to extend to 31 March 1991 the period of validity of equivalence which they had already determined in respect of certain countries not covered by the Community equivalences ; Whereas the said work is still incomplete ; Whereas the authorization may only be extended in accordance with Member States’ obligations under the common rules on plant health, laid down by Council Directive 77/93/EEC (°); Whereas by Commission Decisions 91/591/EEC (*) and 91/592/BEC () derogations provided for by certain Member States from certain provisions of Directive 77/93/EEC in respect of seed potatoes originating in Poland and Canada respectively have been approved until 31 March 1992; () OJ No 125, 11. 7. 1966, p. 2320/66. () OJ No L 60, 7. 3. 1991, p. 18. () OJ No L 26, 31. 1. 1977, p. 20. () OJ No L 316, 16. 11. 1991, p. 43. () OJ No L 316, 16. 11. 1991, p. 45. Whereas the authorization granted to Member States by Article 15 (2a) should accordingly be extended; Whereas the measures provided for in this Directive are in accordance with the opinion of the Standing Committee on Seeds and Propagating Material for Agri- culture, Horticulture and Forestry, HAS ADOPTED THIS DIRECTIVE : Article 1 In Article 15 (2a) of Directive 66/403/EEC, ‘31 March 1991° is replaced by ‘31 March 1992". Article 2 Member States shall bring into force the laws, regulations and administrative provisions necessary to comply with this Directive. They shall forthwith inform the Commis- sion thereof. When Member States adopt these measures, these shall contain a reference to this Directive or shall be accompa- nied by such reference on the occasion of their official publication. The procedure for such reference shall be adopted by Member States. Article 3 This Directive is addressed to the Member States. Done at Brussels, 17 March 1992. For the Commission Ray MAC SHARRY Member of the Commission