b'Preliminary applications and specific proceduresduring the hearing before the Tribunal 277.5Interpretation service A hearing on a request for review is conducted in English or French, as determinedby you under section 8 of the Tribunal Rules.Interpretation services for English and French are provided at the expense of the Tribunal. The party requesting this service must notify the Tribunal in writing at least seven (7) days prior to the hearing.For interpretation services in a language other than English or French, the party requesting the service must notify the Tribunal 30 days prior to the hearing andmust cover the costs for the service.For more information, please refer to Practice Note #5 on interpretation services. 7.6Raising a constitutional question The Tribunal has jurisdiction to hear constitutional questions. A party may thereforeraise the unconstitutionality of an agriculture and agri-food provision that falls withinthe Tribunals jurisdiction.A party wishing to challenge the constitutionality of a legislative provision must:yinform the Tribunal as soon as possible in order to avoid delays in the hearing process;ycomply with section 57 of the Federal Courts Act;yadvise the federal and provincial governments at least ten (10) days before the hearing date (an attorney may participate in or attend the hearing); andymake a request in writing that includes the following information:the contested provision;the legal reasoning;the facts and evidence supporting the claim; andthe remedy sought.Failure to comply with the above conditions may result in the rejection of your requestfor review.For more information, please refer to Practice Note #9 on the procedure for a party that wishes to raise a constitutional question.'