(1) Orders and notices of the Insurance Commissioner shall be effective only when in writing signed by the commissioner by his or her authority.
(2) Every order shall state its effective date and shall concisely state: Its intent or purpose;
(3) The grounds on which based; and
(4) The provisions of the Arkansas Insurance Code pursuant to which action is taken or proposed to be taken, but failure to so designate all applicable provisions shall not deprive the commissioner of the right to rely thereon.
(5) Except as may be provided in the Arkansas Insurance Code respecting particular procedures, an order or notice may be given by service upon or delivery to the person to be ordered or notified or by mailing it, postage prepaid, addressed to the person at his or her principal place of business as last of record in the department.