For implementation purposes in each fiscal year of the compensation survey, for fully commissioned members of the department of safety, and communications technicians of the department of safety, any length of service in the highway patrol at a comparable or a higher rank, any length of service in the Jerry F. Agee Tennessee law enforcement training academy at the same or a higher rank and any length of service in the division of motor vehicle enforcement at the same or a higher rank shall be included in computing a member's years of service. Impl. am. Acts 1979, ch. 93, § 1; Acts 1986, ch. 935, § 6; 1987, ch. 375, § 1.