Prior to the adoption, amendment, or repeal of any rule, the Authority shall give notice, in accordance with the requirements of the Administrative Procedures Act. This notice shall include a statement of either the terms of substance of the intended action, which action shall be specified in the notice. This notice shall be mailed to all persons who have made a timely request of the Authority to receive advance notice of its rule-making proceedings.
Okla. Admin. Code § 355:1-7-1