# The Avian Influenza (H5N1 in Wild Birds) (England) Order 2006, Paragraph 10: National mark

Extent: E+W+S

(1) The national mark referred to in paragraph 9(2)(c)(i) must—
(a) be square;
(b) be clear and visible; and
(c) contain in legible form, the following—
(i) on the upper part, the letters “UK”;
(ii) in the centre, the slaughterhouse approval number;
(iii) on the lower part, the letter “N”.
(2) The other identification mark referred to in paragraph 9(2)(c)(i) must be—
(a) the shape set out below;
(b) of the dimensions referred to below or of proportionate dimensions; and
(c) legible to the naked eye.
(a) UK – letters 8 mm high;
(b) XXXX (where XXXX is the approval number of the premises, as referred to in point 7 of Part B of Section I of Annex II to Regulation (EC) No 853/2004) – numbers 11 mm high;
(c) diameter (to outer edge of border) – not less than 30mm;
(d) thickness of border - 3 mm

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Source: https://www.legislation.gov.uk/uksi/2006/3249/schedule/1/paragraph/10 (the official version)
Page: https://openlegislation.uk/avian-influenza-h5n1-in-wild-birds-england-order-2006/schedule-1/paragraph-10
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.