Montana Title 7. Local Government § 7-6-403. Exemptions

(1) interagency or intergovernmental transactions;

(2) claims subject to a good faith dispute;

(3) delinquencies due to natural disasters, disruptions in postal or delivery service, work stoppage due to labor disputes, power failures, or any other cause resulting from circumstances clearly beyond the control of the county or municipality;

(4) contracts entered into before October 1, 1985; or

(5) wages due and payable to county or municipal employees or payments from any retirement system created pursuant to Title 19.