Arbitration is a form of alternative dispute resolution (ADR). It is a process for the resolution of disputes outside the courts, where the parties to a dispute refer it to one or more persons by whose decision (the "award") they agree to be bound. When the union and employer are unable to resolve a dispute within the terms and conditions outlined in the CBA or through the grievance process, some disputes are taken to Arbitration. The arbitrator, the “third party” hears evidence and arguments, reviews the evidence in the case and imposes a decision that is legally binding for both sides and enforceable. The Arbitrators’ decisions may lead to a precedent that could affect change in the workplace or in other jurisdictions.