Washington Revised Code Title 48. Insurance § 48.09.140. Notice of annual meeting

(a) By imprinting such new date or place on all policies which will be in effect as of the date of such changed meeting; or

(b) Unless the commissioner otherwise orders, notice of the new date or place need be given only through policies issued after the date of the annual meeting at which such change was made and in premium notices and renewal certificates issued during the twenty-four months immediately following such meeting.