The Deputy Presiding Officer
The role of the Deputy Presiding Officer, David Melding AM, is also set out in the Assembly’s Standing Orders.
Standing Order 6.18 states that, "in the absence or at the request of the Presiding Officer, the Deputy must exercise the functions of the Presiding Officer, so far as permitted by the Act"
The main function of the Deputy Presiding Officer is to alternate with the Presiding Officer in chairing Assembly Plenary sessions.The DPO's role is similar to that of a Deputy Speaker in the House of Commons.
Under Standing Order 6.19, the Presiding Officer and Deputy must demonstrate impartiality at all times.
The Deputy also attends meetings and functions in his own right as well as on behalf of the Presiding Officer in order to raise the profile of the National Assembly for Wales.

