(1) The address of record used by the commissioner will be:

(a) For disciplinary orders, the last U.S. mailing address provided by the person or business entity to the commissioner;

(b) For all other matters, the last email address provided by the person or business entity to the commissioner. This will be the email address listed in the mailing address section of the commissioner's licensing date base [database ].

(2) Licensees must advise the commissioner of any change of address within thirty days after a change of address. This includes any change in the person's residence, mailing, business or email address. Failure to advise the commissioner of a change of address may subject a licensee to disciplinary action under RCW 48.17.530 and 48.17.560.