http://www.legislation.gov.uk/ukpga/1998/12/schedule/crossheading/resignationNorthern Ireland (Elections) Act 1998 (repealed 2.12.1999)An Act to make provision for the establishment of the New Northern Ireland Assembly and for the election of its members.1998-05-07texttext/xmlenStatute Law Database2011-05-271999-12-02 SCHEDULE The Assembly Resignation6A member may resign his seat by giving notice in the manner prescribed by standing orders.