All communications with the office including but not limited to the submission of materials pertaining to its operations and/or the administration or enforcement of chapter 1, Laws of 1973 and these rules, requests for copies of the office's decisions and other matters, shall be addressed as follows: Office of State Treasurer, Legislative Building, Olympia, Washington 98504.
Wash. Admin. Code § 474-01-120
Order 2, § 474-01-120, filed 7/30/74.