Orders and notices: Effectivity; contents of orders; methods of provision

1. Orders and notices of the Commissioner are effective only when in writing signed by the Commissioner or by the authority of the Commissioner. 2. Except as otherwise expressly provided by law as to particular orders, every order of the Commissioner must state its effective date, and concisely state: (a) Its intent or purpose; (b) The grounds on which it is based; and (c) The provisions of this Code pursuant to which action is taken or proposed to be taken but failure to so designate a particular provision does not deprive the Commissioner of the right to rely thereon. 3. Except as otherwise provided as to particular procedures, an order or notice may be given by delivery to the person to be ordered or notified, or by mailing it, postage prepaid, addressed to that person at his or her principal place of business or residence as last of record in the Division. The order or notice shall be deemed to have been given when deposited with the United States Postal Service, and of which the affidavit of the person who so mailed the order or notice is prima facie evidence.