An updated checklist shall be used at all town meetings and elections for the same purposes a checklist is used at a state election and to insure that only qualified voters participate in town meeting discussions and votes, by voice or otherwise. The supervisors shall prepare, post, and revise the checklist for a town meeting or election in the same manner as for a state election as provided in N.H. Rev. Stat. § 654:25-654:31, provided, however, that the session for correction shall be held on Saturday 6 to 13 days prior to the election. The supervisors shall also hold one session for correction of the checklist on the day immediately prior to the first day of the filing period for candidates for town office, as provided in N.H. Rev. Stat. § 669:19 or 669:42, as applicable, from 7:00 p.m. to 7:30 p.m. and at the discretion of the supervisors for extended hours.