Articles 1 to 3 of the Order contain introductory and interpretation provisions. Article 4 provides for the notification of certain diseases and for the taking of precautionary measures when disease is suspected. Article 5 sets out restrictions which may apply if any disease is suspected or known to exist. Article 6 provides for veterinary inquiry into the existence of disease. Article 7 sets out restrictions which apply where poultry or other birds are suspected of having been exposed to the ri