House of Commons
Commission membership was laid out in the House of Commons (Administration) Act 1978. Membership consisted of the Speaker of the House of Commons, the Leader of the House of Commons, a member of parliament appointed by the Leader and three members of parliament appointed by the House of Commons. The three members appointed by the House of Commons cannot also be Ministers of the Crown. Membership was updated by the House of Commons Commission Act 2015. The 2015 act expanded the Commission to include an additional member of parliament and four lay members.