Article 4
Member States shall ensure that the analytical results sent to the Commission and to the other Member States annually, in accordance with the provisions of Article 7(3) of Directive 86/362/EEC and Article 4(3) of Directive 90/642/EEC have been obtained by laboratories which: - are in compliance with the requirements of Article 3 of Directive 93/99/EEC, and - make every effort to implement the quality control procedures for pesticide residue analysis provided for in Article 2(2)(b) of this Regulation. In addition, Member States shall ensure that participation in the coordinated Community programme shall be restricted to laboratories which have participated in a previous, or which shall participate in the next round of the relevant Community proficiency tests provided for in Article 2(2)(a) of this Regulation.