All passport applications are subject to the provisions of the Passports Act, 2008 ("The 2008 Act"). The 2008 Act provides, among other things, that a person must be an Irish citizen before a passport can be issued to him or her. In order to meet this requirement, each person must demonstrate an entitlement to Irish citizenship by providing acceptable documentary evidence of this entitlement.
Entitlement to Irish citizenship is determined by the Irish Nationality and Citizenship Act 1956, as amended, under which Irish citizenship may be obtained by birth, by descent, or by naturalisation.
Where an individual has obtained citizenship via naturalisation, a copy of their naturalisation certificate must be submitted in support of their passport application. The issuance of naturalisation certificates and the legislation that provides for citizenship through naturalisation are matters for the Department of Justice and Equality.