RSA 100-A:20 General Conditions for Participation.

I. The governing board of any county, city, town, school district, school administrative unit or other political subdivision of the state may, by resolution legally adopted, in form approved by the board of trustees, elect to have its officers and employees become eligible to participate in the retirement system. After such election, such body shall be known as an employer for purposes of this chapter. The board of trustees shall set the date when the participation of the officers and employees of any employer shall become effective, and then such officers and employees may become members and participate herein, as provided in this subdivision. Notwithstanding anything to the contrary, employees of any employer who are members of one or more of the predecessor systems and who have n