Conn. Agencies Regs. § 29-23a-5
Except as provided in this section, wrecker operators shall be available 24 hours per day, seven days per week, and shall respond to calls for service on limited-access highways no later than 20 minutes after notification by state police, 30 minutes in all other locations. Where traffic conditions warrant, required response times may be reduced at the discretion of the state police troop supervisor on duty or his or her designee. Where a shorter response time is required, the wrecker operator shall be so advised when notified of the call for service. Support items provided by a heavy-duty-recovery service wrecker operator shall respond to a call for service within a period of time determined to be reasonable by a state police troop supervisor on duty or his or her designee, taking into account the equipment needed, time of day, traffic volume, weather conditions and such other factors as he or she deems to be appropriate.
Conn. Agencies Regs. § 29-23a-5