Mont. Code § 44-4-902
A class I railroad corporation, as defined by the interstate commerce commission in part 1201 of 49 CFR, desiring the appointment of an officer or employee as a special peace officer shall apply to the attorney general. The application must state the name, age, and place of residence of the person applying for appointment. The applicant must have at least 3 years of experience as a class I railroad peace officer or have completed a training course at an approved law enforcement academy, or meet the qualifications described in 7-32-303 and adopted pursuant to Title 44, chapter 4, part 4. The application must be signed by the applicant and a managing officer of the railroad corporation. The managing officer signing the application shall at the same time submit an affidavit to the effect that the officer is acquainted with the person seeking appointment, that the officer believes the applicant to be of good moral character, and that the applicant is of good moral character and has experience such that the applicant can be safely entrusted with the powers and duties of a special peace officer.
§ 44-4-902, MCA