Parliament of Australia
From 1901 to 1949, the House consisted of either 74 or 75 members (the Senate had 36). Between 1949 and 1984, it had between 121 and 127 members (the Senate had 60 until 1975, when it increased to 64). In 1977, the High Court ordered that the size of the House be reduced from 127 to 124 members to comply with the nexus provision. In 1984, both the Senate and the House were enlarged; since then the House has had between 148 and 150 members (the Senate has 76).
Cabinet of Australia
Members of both the House of Representatives and Senate are eligible to serve as ministers and parliamentary secretaries. A minister does not have to be a member of either house, but Section 64 of the Constitution of Australia requires the minister to become a member within three months. The Prime Minister and Treasurer are traditionally members of the House of Representatives, but the Constitution does not have such a requirement. As amended in 1987, the Minister of State Act 1952 permits up to 30 ministers. As members of one house cannot speak in the other, ministers in each house serve as representatives of colleagues in the other for answering questions and other procedures.