This excerpt taken from the BBV 20-F filed Jul 7, 2006.
Article 38. Chairman and Secretary of the Board
The Board of Directors shall designate, from amongst its members, a Chairman to chair the Board, and one or several Deputy Chairs. It shall also designate, from amongst its members, the Chair and Deputy Chair for the Committees referred to in section four below.
In the event of the Chairmans absence or impossibility to chair, the chair duties shall be taken over by the deputy Chair. If there is more than one deputy Chair, the order of priority shall be that fixed by the Board of Directors when they were appointed and if this order was not established, by the oldest.
In the absence of a Deputy Chairman, the governing body shall be chaired by the Director designated for such purpose by the Board of Directors.
The Board of Directors shall designate a Secretary from amongst its members, unless it resolves to commend these duties to a non-Board-member. It may also designate a Deputy Secretary, who will stand in for the Secretary in the case of the Secretarys absence or impossibility. Otherwise, the Board of Directors shall determine the substitute in each case.