(1) Despite subsection 604(2), the FWC must not grant permission to appeal from a decision made by the FWC under subsection 777(2) (which is about arbitration of a dispute) unless the FWC considers that it is in the public interest to do so.
(2) Despite subsection 604(1), an appeal from a decision made by the FWC in relation to a matter arising under subsection 777(2) can only, to the extent that it is an appeal on a question of fact, be made on the ground that the decision involved a significant error of fact.