# Council Directive of 26 June 1964 on animal health problems affecting intra-Community trade in bovine animals and swine (64/432/EEC), Division B: A herd shall retain officially enzootic-bovine-leukosis-free status provided:

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

(i) the condition in A(i) continues to be fulfilled;
(ii) any animals introduced into the herd come from an officially enzootic-bovine-leukosis-free herd;
(iii) all animals over 24 months of age continue to react negatively to a test carried out in accordance with Chapter II at intervals of three years;
(iv) breeding animals introduced into a herd and originating from a third country have been imported in accordance with Directive 72/462/EEC.

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Source: https://www.legislation.gov.uk/eudr/1964/432/annex/D/chapter/I/division/B (the official version)
Page: https://openlegislation.uk/eu-directive-1964-432/annex-D/chapter-I/division-B
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.