http://www.legislation.gov.uk/nisi/1989/677/schedule/2/crossheading/the-maintenance-orders-act-1950-c-37/made

The Matrimonial and Family Proceedings (Northern Ireland) Order 1989

Divorce

Courts of law

Government Printer for Northern Ireland

2015-12-11

NORTHERN IRELAND

Part II of this Order replaces the present restriction on the presentation of a petition for divorce within three years of marriage without the leave of the court with an absolute bar on the presentation of a petition within two years of marriage and provides for the extension of the three year period within which certain petitions for a decree of nullity must be presented in cases where the petitioner suffers from mental disorder.