# The Bovine Embryo (Collection, Production and Transfer) Regulations 1995, Paragraph 4

Extent: E+W+S

The donor animals must come from herds which are—
(a) officially tuberculosis free,
(b) officially brucellosis free or brucellosis free, and
(c) either enzootic bovine leucosis free or for which certification has been obtained that there has not been any clinical case of enzootic bovine leucosis during the past three years.

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Source: https://www.legislation.gov.uk/uksi/1995/2478/schedule/5/paragraph/4 (the official version)
Page: https://openlegislation.uk/bovine-embryo-collection-production-and-transfer-regulations-1995/schedule-5/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.