5. If an animal is imported into Northern Ireland from outside the European Union the animal may be moved from the point of importation to the holding of destination stated on the health certificate accompanying it, without being marked, but within 30 days of the date of its importation (unless it is slaughtered without being moved from the holding of destination within that time), or before it is moved from the holding of destination if sooner, it shall be marked on that holding in accordance with Article 4(1).