All contractors and contracting owners included shall, at the time of executing any contract for any work, execute a bond to the satisfaction and approval of the board of county commissioners, in the form and manner provided for in Title 18, chapter 2, part 2.
Contractor's Bond For Successful Completion Of Work
Mont. Code Ann. § 7-12-2138, under Rural Improvement Districts.
Mont. Code Ann. § 7-12-2138