When voters, in number equal to five percent of the registered voters in town, petition the selectboard in writing to adopt or rescind the town manager form of governance, the warning for the annual or special meeting that shall be called upon such petition shall contain an article in substantially the form set forth in section 1243 of this chapter. (Amended 1985, No. 196 (Adj. Sess.), § 13; 2019, No. 67, § 21.)