The Library of the President is used as a meeting room for some of the most important bodies of the Chamber of Deputies: the Conference of Group Chairpersons, the Bureau, and the Committee on the Rules of Procedure. The Conference of Group Chairpersons sets the agenda of the Chamber, while the Bureau, which must include representatives of all the parliamentary groups, has key responsibilities for the functioning of the Chamber. It is composed of four Vice-Presidents, who assist the President of the Chamber of Deputies in chairing the Plenary, three Quaestors, who oversee the smooth running of the administration and spending, supervise matters of Protocol and the upholding of order in the Chamber premises, acting on the instructions of the President. Finally, the Bureau includes at least eight MP Secretaries, who work with the President to ensure that its operations proceed smoothly. The Committee on the Rules of the Chamber of Deputies assists the President in the interpretation of the Rules of Procedure, and submits any amendments to the full Chamber. The Committee on the Rules is composed of ten members who are appointed by the President as soon as the parliamentary groups are formed. After hearing the opinion of the Committee, however, the President may appoint other members the better to reflect the proportional parliamentary representation of the various political Groups.