5bbe58c7_nd_Spending_Limits_the_Answer___Limit_is
[State] Montana [Provisions for a Waiver] Declaration of an emergency by governor and 2/3 approval of the legislature on specific additional expenditures. [Limit is] 
Biennial growth shall not exceed the percentage difference in the average state personal income over the 3 calendar years immediately preceding the biennium and the average state personal income over the 3 calendar years immediately preceding the current biennium.
Taming Leviathan: Are Tax and Spending Limits the Answer?
Limit is