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.The arbitration system in Allegheny County provides for simple and concise pleadings and a trial of the issues enabling the parties to resolve claims. If you would like to participate in Mediation please fill out the Agreement to mediate form along with your Request for Arbitration paperwork. 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.