The following rules shall apply to ratites and hatching eggs thereof coming from a third country considered as infected with Newcastle disease and day-old chicks that have hatched from such eggs:
before the date the isolation period begins, the competent authority shall check the isolation facilities as referred to in Article 12(3) to see whether they are satisfactory;
during the relevant period as provided for in Article 12(1) and (2), a virus isolation test for Newcastle disease shall be carried out on a cloacal swab or faeces sample from each ratite;
where ratites are to be sent to a Member State or region the status of which has been established in accordance with Article 12(2) of Directive 90/539/EEC, a serological test shall be carried out on each ratite, in addition to the virus isolation test provided for in (b);
negative results of the tests provided for in (b) and (c) shall be available before any bird is released from isolation.