Schedule 1 to the Parliamentary Constituencies Act 1986 makes provision for the constitution of the four boundary commissions, including the Boundary Commission for Northern Ireland. Under paragraph 2 of schedule 1 to the Act, each commission must consist of a chairman, deputy chairman and two other members appointed by the Secretary of State. I have extended the appointment of Mr Richard Mackenzie as a member of the Boundary Commission for Northern Ireland until 30 September 2013.