2.—(1) Where the Department has grounds for suspecting that foot-and-mouth disease exists within Northern Ireland or within such part of the Republic of Ireland as may entail the risk of the spread of that disease into Northern Ireland, it may by notice in writing declare Northern Ireland or any such area as may be specified in the notice to be an infected area.
(2) A notice given under paragraph (1) shall:
(a)be published in such manner and to such extent as appears to the Department to be sufficient to bring the terms of the notice to the attention of those persons likely to be affected by it;
(b)specify the date on which it shall come into operation; and
(c)remain in operation until revoked by a further notice published in like manner.
(3) A notice given under paragraph (1) may be varied by the Department and any such variation shall be in writing and published, so far as practicable, in the same manner and to the same extent as that notice.
(4) Subject to paragraph (5), any premises partly within an infected area shall be deemed to be wholly within an infected area.
(5) Nothing in paragraph (4) shall deem any area outside Northern Ireland to be an infected area.