Officers of the House of Commons

At the beginning of each new parliamentary term, the House of Commons elects one of its members as a presiding officer, known as the Speaker. If the incumbent Speaker seeks a new term, then the house may re-elect him or her merely by passing a motion; otherwise, a secret ballot is held. A Speaker-elect cannot take office until she or he has been approved by the Sovereign; the granting of the royal approbation, however, is a formality. The Speaker is assisted by three Deputy Speakers, the most senior of whom holds the title of Chairman of Ways and Means. The two other Deputy Speakers are known as the First and Second Deputy Chairman of Ways and Means. These titles derive from the Committee of Ways and Means, a body over which the chairman once used to preside; even though the committee was abolished in 1967, the traditional titles of the Deputy Speakers are still retained. The Speaker and the Deputy Speakers are always members of the House of Commons.

Whilst presiding, the Speaker or Deputy Speaker traditionally wears ceremonial dress. The presiding officer may also wear a wig, but this tradition was abandoned by Speaker Betty Boothroyd. Her successor, Michael Martin, also did not wear a wig while in the chamber. His successor, John Bercow, chose to wear a gown over a lounge suit, a decision that sparked much debate and opposition; he also did not wear a wig.

The Speaker or deputy presides from a chair at the front of the house. This chair was designed by Augustus Pugin, who initially built a prototype of the chair at King Edward's School, Birmingham: that chair is called Sapientia (Latin for "wisdom") and is where the chief master sits. The Speaker is also chairman of the House of Commons Commission, which oversees the running of the house, and controls debates by calling on members to speak. A member who believes that a rule (or Standing Order) has been breached may raise a "point of order", on which the Speaker makes a ruling not subject to any appeal. The Speaker may discipline members who fail to observe the rules of the house. The Speaker also decides which proposed amendments to a motion are to be debated. Thus, the Speaker is far more powerful than his or her Lords counterpart, the Lord Speaker, who has no disciplinary powers. Customarily, the Speaker and the deputies are non-partisan; they do not vote (with the notable exception of tied votes, where the Speaker votes in accordance with Denison's rule), or participate in the affairs of any political party. By convention, a Speaker seeking re-election to parliament is not opposed in his or her constituency by any of the major parties. The lack of partisanship continues even after the Speaker leaves the House of Commons.

The Clerk of the House of Commons is both the house's chief adviser on matters of procedure and chief executive of the House of Commons. She or he is a permanent official, not a member of the house itself. The Clerk advises the Speaker on the rules and procedure of the house, signs orders and official communications, and signs and endorses bills. The Clerk also chairs the Board of Management, which consists of the heads of the six departments of the house. The Clerk's deputy is known as the Clerk Assistant. Another officer of the house is the Serjeant-at-Arms, whose duties include the maintenance of law, order, and security on the house's premises. The Serjeant-at-Arms carries the ceremonial mace, a symbol of the authority of the Crown and of the House of Commons, into the house each day before the Speaker, and the mace is laid upon the table of the house during sittings. The Librarian is head of the House of Commons Library, the house's research and information arm.