Mont. Code § 20-20-108
If the governor declares a state of emergency or disaster under Title 10, chapter 3, a school election may be canceled by the county superintendent of schools or, in the absence of the county superintendent, by the state superintendent of public instruction. As soon as convenient after the declaration of a state of emergency or disaster is terminated, the trustees of the district shall set a new date for the election. Notice of such election shall be published for 7 consecutive days in a newspaper of general circulation in the district and posted for 7 days at district polling places. Whenever the best interests of the district would be served, the trustees may give additional notice of the election through appropriate radio and television stations that serve the people of the district.
§ 20-20-108, MCA