(1) An expense (however described) prescribed by this Subdivision for a person is prescribed subject to the condition that the travel by the person has been approved by both presiding officers.
(2) However, subsection (1) does not apply in relation to the following:
(a) international travel expenses prescribed by subsection 56(3) (extended travel);
(b) airfares (or contributions towards airfares) prescribed by subsection 56(4) (spouse travel).
(3) An international travel expense prescribed by subsection 56(3) (extended travel) for a member is prescribed subject to the condition that the additional travel by the member has been approved by the Minister.