The formal name for the position held by the Clerk of the House of Commons is Under Clerk of the Parliaments. The chief clerk of the House of Lords is the Clerk of the Parliaments.
Until 1 January 2008, when the reforms to the House's governance proposed by the Tebbit Review of management and services of the House were implemented, the Clerk was the head of the Clerk's Department. He remains the principal adviser to the Speaker on the House's privileges and procedures. The Clerk's other responsibilities relate to the conduct of the business of the House and its committees. The Clerk is also accounting officer for the House.