Mont. Code § 69-12-204
Insofar as possible and applicable, the provisions of statutes prescribing the procedure before the commission in cases involving rates, facilities, service, or other affairs of railroads in this state, including forms of applications, complaints, answers, orders, and notices of hearing; the conducting of hearings; compelling the attendance and testimony of witnesses and the production of records, data, and information; and the preparation, recording, and serving of reports and orders of the commission, shall be followed and shall govern in all proceedings and investigations before the commission in cases arising in connection with the performance by the commission of its duties or the exercise of its jurisdiction under the provisions of this chapter.
§ 69-12-204, MCA