Minn. Stat. § 383C.026: LAPSE OF APPROPRIATIONS.

Each appropriation, except an appropriation for a capital expenditure, lapses at the close of the fiscal year to the extent that it has not been expended or encumbered. Amounts in funds unexpended at the end of the fiscal year may be carried over from one fiscal year to the next in accordance with generally accepted accounting principles.

An appropriation for a capital expenditure continues in force until the purpose for which it was made has been accomplished or abandoned. The purpose of a capital expenditure appropriation is abandoned if three years pass without a disbursement from or encumbrance of the appropriation.