90.—(1) Any written notice or other document to be given in pursuance of this Part of this Act may be given in any of the following ways:—

(a) in case it is to be given to the Minister, by sending it by post in an envelope addressed to the Minister for Health, Dublin;

(b) in case it is to be given to any other person—

(i) by handing it to such person, or

(ii) by leaving it at the usual or last-known place of abode of such person, or

(iii) by sending it by post in a prepaid registered envelope addressed to such person, in the case of an individual, at his usual or last-known place of abode, or in the case of a company registered under the Companies Acts, 1908 to 1924, at its registered office, or in the case of any other body corporate or any unincorporated association, at its principal office or place of business.

(2) Where a written notice or other document is to be given in pursuance of this Part of this Act to the owner or the occupier of land and the name of such owner or occupier is not known, such document may be addressed to “the owner” or “the occupier” (as the case may be) of the land and may be given to such owner or occupier by leaving it at or affixing it in a prominent position on the land.