Montana Title 7. Local Government § 7-5-4308. Procedure to modify contract

(1) When it becomes necessary in the prosecution of any work to make alterations or modifications of the specifications or plans of a contract, the alteration or modification may be made only by resolution of the council. The resolution is not in effect until the price to be paid for the work is agreed to in writing and signed by the contractor and approved by the council.

(2) A contractor may not be allowed anything for extra work caused by an alteration or modification unless a resolution is made and an agreement is signed as provided in subsection (1). A contractor may not be allowed more for the alteration than the price fixed by the agreement.