Montana Title 17. State Finance § 17-5-1001. Action to restrain bond issues

(1) No action may be brought for the purpose of restraining the issuance and sale of bonds or other obligations by the state of Montana or for the purpose of restraining the levy and collection of taxes for the payment of such bonds or other obligations after the expiration of 60 days from the date of the election on such bonds or obligations or, if no election was held thereon, after the expiration of 60 days from the date of the order, resolution, or ordinance authorizing the issuance thereof, on account of any defect, irregularity, or informality in giving notice of or in holding the election. No defense based upon any such defect, irregularity, or informality may be interposed in any action unless brought within this period.

(2) This section applies but is not limited to any action or defense in which the issue is raised whether a voted debt or liability has carried by the required majority vote of the electors qualified and offering to vote thereon.