Washington Mandatory Arbitration Hearing Notice is a document issued by the Washington State Office of Administrative Hearings (OAK) to notify parties of a mandatory arbitration hearing. This notice is sent to parties involved in a dispute in which the OAK has determined that a mandatory arbitration hearing is necessary. This document outlines the details of the arbitration hearing, including the date, time, and location of the hearing, as well as any documents that the parties must provide to the OAK. The Washington Mandatory Arbitration Hearing Notice also includes information about resources that are available to the parties, such as legal representation and dispute resolution services. There are two types of Washington Mandatory Arbitration Hearing Notice: Initial and Subsequent. The Initial Notice is sent to the parties prior to the arbitration hearing and outlines the details of the hearing. The Subsequent Notice is sent after the arbitration hearing and outlines the decision of the arbitrator.