Conn. Agencies Regs. § 7-453-1
An application form for participation by a municipality in the Old-Age, Survivors, Disability, and Health Insurance System under title II of the social security act, as amended, and in accordance with sections 7-452 to 7-459, inclusive, of the general statutes, as amended, shall be filed with the state retirement commission in duplicate and certified to by the town clerk or other official under duty to keep records of meetings. In those cases where a referendum is required the legislative body of the municipality, in addition to making the foregoing application to the commission, shall request the governor to authorize a referendum. Upon such authorization, the commission shall set the date of the referendum and shall send notice to each eligible member ninety days before such date, accompanied by literature to inform the employee of the rights which will accrue to him and his dependents and survivors, and the liabilities to which he will be subject, if his services are covered under social security. The commission shall supervise the referendum.
Conn. Agencies Regs. § 7-453-1