Me. Rev. Stat. tit. 20-A, § 1484

Beginning with the budget for the 2008-2009 school year, prior to a vote on articles dealing with regional school unit appropriations, the moderator of a regular or special regional school unit budget meeting shall require the clerk or secretary of the regional school unit board to make a checklist of the registered voters present. The number of voters listed on the checklist is conclusive evidence of the number present at the meeting.