Section 10.5 Rights of Employees to Representation Subdivision 10.51 Employee and United Faculty Any aggrieved person may be represented at all stages of the grievance procedure prior to Level Three by herself/himself, or at United Faculty's option, by a representative selected or approved by the United Faculty. The United Faculty shall have the right to be present at all levels as a party of interest. Subdivision 10.52 Separate Grievance File All official documents, communications, and records dealing with the processing of a grievance shall be filed in a separate grievance file. The grievance file shall be accessible during business hours to the grievant and United Faculty upon the request of either. Subdivision 10.53 Arbitration Hearings All hearings before the arbitrator under this procedure shall be open except if the parties mutually agree that the proceedings should be closed, or the arbitrator orders the proceedings closed for cause.