31. An application for an intervention is deemed to have been validly submitted if it:(1) was duly submitted in writing and included the information noted in section 12 of this Regulation;
(2) was substantiated;
(3) was notified to the Commission and the parties involved within 20 days of the first day of publication of the notice referred to in section 24, in the timeframe indicated in section 29 or otherwise, in due time prior to a decision being rendered with regard to the application leading up to the application for an intervention;
(4) included payment of the applicable fees and duties;
(5) was performed as per applicable legislative or regulatory provisions.