An Appeal is a written disagreement with a protestable or appealable order. Must be sent in writing to the Board of Industrial Insurance Appeals within 60 days of when the order was communicated to you. This written appeal should comply with the requirements of RCW 51.52.070. Miss your 60 day deadline and you have a problem because the order becomes Res Judicata. If you appeal in time then you will start into the Board of Industrial Insurance Appeals process.
Send a written appeal to: BIIA, P.O. Box 42401, Olympia, WA 98504-2401
Or you can file your appeal online.