An agreement to arbitrate a controversy on a nonjudicial basis shall be conclusively presumed to be an agreement to arbitrate pursuant to Subchapter B. The arbitration of claims can take several different forms in Pennsylvania, but can be generally categorized as either compulsory judicial arbitration.Arbitration. In the event a grievance cannot be resolved, some labor contracts allow for arbitration to settle the grievance. The rules governing arbitration have recently changed in Pennsylvania. The older law, the UAA or Uniform Arbitration Act, was adopted in 1980. The RUAA establishes procedures for the initiation of arbitration. Cases must be filed in the Office of the Prothonotary. Section 7375 - Arbitration agreement (a) Requirements. The application must be filed with the Arbitration Center and contemporaneously delivered to the other parties in the same manner as the original filing. Uber used a browsewrap agreement.