Appointments to posts on the joint staff of the Houses of the Oireachtas fall to be be made by the Ceann Comhairle. In most instances such appointments are made on foot of competitions held by the Civil Service Commission or in line with well-established promotion procedures which are well-established in the Civil Service. In the case of a small number of grades, notably services officer and services attendant, the Ceann Comhairle is empowered to make unestablished appointments without the involvement of the Civil Service Commission.
Since 1987, the only competition for posts as services officer or services attendants was held in April 1991, as a result of which 12 new staff in these grades have been appointed to date.