# Regulation (EC) No 999/2001 of the European Parliament and of the Council of 22 May 2001 laying down rules for the prevention, control and eradication of certain transmissible spongiform encephalopathies, Division 2: Regular random sampling of ovine animals from TSE-resistant flocks shall be carried out:

Extent: E+W+S+N.I.

(a) on the holding or at the slaughterhouse to verify their genotype;
(b) in the case of level I flocks, in animals over 18 months of age at the slaughterhouse, for TSE testing in accordance with Annex III.

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Source: https://www.legislation.gov.uk/eur/2001/999/annex/VII/chapter/C/part/4/division/2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2001-999/annex-VII/chapter-C/part-4/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.