(1) A bargaining representative for a proposed enterprise agreement to which a single interest employer authorisation relates may apply to FWA to vary the authorisation to extend the period for which the authorisation is in operation.
(2) FWA may vary the authorisation to extend the period if FWA is satisfied that:
(a) there are reasonable prospects that the agreement will be made if the authorisation is in operation for a longer period; and
(b) it is appropriate in all the circumstances to extend the period.