1.in Article 6, the first subparagraph of paragraph 2(a) shall be replaced by:‘come from an officially tuberculosis-free bovine herd, and in the case of animals more than six weeks old, have reacted negatively to an intradermal tuberculin test carried out in accordance with the provisions of point 2.2 of Annex B either during the 30 days prior to leaving the herd of origin or in a place and under conditions to be defined in accordance with the procedure referred to in Article 17.’;