23.—(1) The approved veterinary surgeon must by notice inform the keeper and the Welsh Ministers of any change of BVD status under articles 21 or 22.
(2) A notice under paragraph (1) must be given within 5 days of the approved veterinary surgeon’s determination of the change of BVD status and must include the official ear tag number of the animal or animals in respect of which the further action or investigation or, as the case may be, further testing, has been carried out.