In processing a passport application the Passport Service verifies that the applicant is an Irish citizen by examining supporting documentation. The Passport Service does not verify or keep records of any other citizenship an applicant may hold.
Records are maintained of the volumes of passport applications submitted through Embassies and Consulates General abroad, as well as the country of residence of applicants when renewing their passports. It is not necessarily the case, however, that an applicant applying from outside Ireland is also a citizen of her/his country of residence. Accordingly, figures for passport applications through the Embassy of Ireland in London include both Irish citizens who do not hold any other citizenship as well as those who are also British citizens and/or hold citizenship of another country.