In England the tiered system of political representation entails local authorities, which exercise a measure of devolved power from the national government of the United Kingdom. The regional, or city, council is an elected body of representatives controlling certain aspects of the administration of local government. The council, or corporation, employs a body of professional officials, essentially civil servants, both administrative and technical, to undertake its work. A variety of departments, such as Parks or Housing, with their own staff, are directed by committees of councillors, which are specific to the remit of each department. Larger departments often require sub-committees, although all the committees are technically sub-committees of the Full Council and its vote. The committees and sub- committees of London County Council generated a body of material including agendas for, and minutes of, their meetings. The committees were informed by a variety of reports from the London County Council's own officials, as well as from national governmental bodies and independent professional bodies.