Mont. Code Ann. § 2-3-102
As used in this part, the following definitions apply:
(1) "Agency" means any board, bureau, commission, department, authority, or officer of the state or local government authorized by law to make rules, determine contested cases, or enter into contracts except:
(3) "Rule" means any agency regulation, standard, or statement of general applicability that implements, interprets, or prescribes law or policy or describes the organization, procedures, or practice requirements of any agency. The term includes the amendment or repeal of a prior rule but does not include:
History: En. 82-4227 by Sec. 2, Ch. 491, L. 1975; amd. Sec. 23, Ch. 285, L. 1977; amd. Sec. 1, Ch. 452, L. 1977; R.C.M. 1947, 82-4227(part); amd. Sec. 1, Ch. 243, L. 1979.