Irish Nationality and Citizenship Act 1956
Grant of citizenship as token of honour.
12. —(1) The President may grant Irish citizenship as a token of honour to a person or to the child or grandchild of a person who, in the opinion of the Government, has done signal honour or rendered distinguished service to the nation.
(2) A certificate of Irish citizenship shall be issued to the person to whom Irish citizenship is so granted and he shall, from the date of the certificate, be an Irish citizen.
(3) Notice of the issue of the certificate of citizenship shall be published as soon as may be in Iris Oifigiúil.