Washington Notice of Arbitration Hearing Date is a document that is sent to parties involved in a dispute or arbitration proceeding. It is a notice from the arbitrator that specifies the date, time and location of the hearing. It typically includes the names of the parties involved and the issues to be addressed during the hearing. The Washington Notice of Arbitration Hearing Date also outlines the procedures and rules that will govern the arbitration process. There are two types of Washington Notice of Arbitration Hearing Date: one for an arbitration hearing before a single arbitrator, and one for an arbitration hearing before a panel of three arbitrators.