Ind. Code § 25-33.5-2-24

Sec. 24. "Rule" means a written statement by the psychology interjurisdictional compact commission promulgated under IC 25-33.5-11 that is of general applicability, implements, interprets, or prescribes a policy or provision of the compact, or an organizational, procedural, or practice requirement of the commission and has the force and effect of statutory law in a compact state, including the amendment, repeal, or suspension of an existing rule.