Wash. Admin. Code § 284-58-053
If an insurer files a revised or replaced form, the filer must provide the supporting documentation described below:
(2) If a previously approved form is replaced with a new version, the filer must submit an exhibit that marks and identifies each change or revision to the replaced form using one of these methods:
[Statutory Authority: RCW 48.02.060, 48.110.150. WSR 08-21-091 (Matter No. 2007-11), § 284-58-053, filed 10/15/08, effective 2/1/09.]