RSA 100-C:5 Service Retirement Benefits.

I. Any member who has at least 15 years of creditable service and is at least 60 years of age, or who has at least 10 years of creditable service and is at least 65 years of age, or who has at least 7 years of service and is 70 years of age may retire on a service retirement allowance or a reduced service retirement allowance, upon written application to the board setting forth on what date, not less than 30 days nor more than 90 days subsequent to the filing of the application, the member desires to be retired. During such period of notification, the member may have separated from service.
II. A member who is at least 65 years of age with 10 years of creditable service may retire on a service retirement allowance equal to 75 percent of the member's final year's salary.