In addition to NFPA 52 §6.13.2, all CNG containers, valves, dispensers, accessories, piping, transfer equipment, and gas utilization equipment shall be installed and maintained in safe working order according to the manufacturer's instructions and the rules in this chapter. If any one of the CNG storage containers, valves, dispensers, accessories, piping, transfer equipment, gas utilization equipment, and appliances is not in safe working order, AFS may require that the installation be immediately removed from CNG service and not be operated until the necessary repairs have been made.