RSA 100-A:22 Modifications.

Membership in the retirement system shall be optional for officers and employees of the employer who are in the service of the employer on the date when participation becomes effective, and any such officer or employee who elects to join the retirement system within one year thereafter shall be credited with prior service covering such periods of prior service rendered to such employer for which the employer is willing to make accrued liability contributions. If the employer is unable or unwilling to make such contributions, a member in service may petition the board of trustees for periods of prior service rendered to such employer. Upon payment by the member of the amount determined in accordance with RSA 100-A:3, VI(b) and with the approval of the board, the member shall receive credit