206. An employee governed by a collective agreement or the association certified to represent him may elect to invoke the grievance settlement and arbitration procedure instead of filing a complaint with the labour commissioner general. In that case, sections 17, 100 to 100.10 and 139 to 140.1 of the Labour Code (chapter C-27) apply, adapted as required.
The arbitrator shall refuse to hear the grievance if a complaint is filed with the labour commissioner general at the same time the grievance settlement and arbitration procedure is invoked.