Conn. Gen. Stat. § 7-433d

Any uniformed member of a paid fire department who offers his services to an officer or person in charge of another fire company which is actively engaged in fire duties, and whose services are accepted by such officer or person, shall be entitled to receive benefits under chapter 568, and under the contributory or noncontributory retirement system of the municipality for which such services were performed, in the event of his injury or death arising out of such services, as if he were a member of the fire department of such municipality.