Me. Rev. Stat. tit. 20-A, § 1309

The school board may call a special budget meeting when it declares an emergency exists. The voters of the district may authorize the directors at a special district budget meeting to expend additional funds from the district's undesignated fund balance or to pledge the credit of the district to obtain additional money for the operation of schools. The special budget meeting must be held in accordance with sections 1302 to 1307.