# The Bovines and Bovine Products (Trade) Regulations 1998, Paragraph 1


The additional mark for application to meat using a marking instrument shall consist of an elongated hexagonal mark, with two parallel straight sides of 4.5 cm length, 4.5 cm apart and joined by two shorter sides of equal length to form a point at each end, so that the mark is 8.5 cm long from point to point; bearing on the upper part the initials XAP and in the lower part the XAP number of the establishment at which the mark is applied, e.g. 31/1, the letters and figures being at least 1.0 centimetre high, legible and indelible.
An example follows:

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Source: https://www.legislation.gov.uk/uksi/1998/1135/schedule/2/paragraph/1 (the official version)
Page: https://openlegislation.uk/bovines-and-bovine-products-trade-regulations-1998/schedule-2/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.