WAC 491-04-140. What is adequate proof of service?

Where proof of service is required by statute or rule, filing the papers with the board, together with one of the following, shall constitute proof of service: (1) an acknowledgement of service (2) A certificate that the person signing the certificate served the papers upon all parties of record in the proceeding by delivering a copy thereof in person to (names). (3) A certificate that the person signing the certificate served the papers upon all parties of the proceeding by: (a) Mailing a copy thereof, properly addressed with the postage prepaid, to each party to the proceeding or his or her attorney or authorized agent; or (b) Transmitting a copy thereof by fax, and on the same day mailing a copy, to each party to the proceeding or his or her attorney or authorized agent; or (c) Depositing a copy thereof, properly addressed with charges prepaid, with a commercial parcel delivery company.