(a) Each service line must have a service line valve that meets the applicable requirements of this Part. A valve incorporated in a meter bar that allows the meter to be bypassed may not be used as a service line valve. All such exposed valves must be of tamper proof construction.

(b) A soft seat service line valve may not be used if its ability to control the flow of gas could be adversely affected by exposure to anticipated heat.

(c) Each service line valve on a high pressure service line, installed aboveground or in an area where the blowing of gas would be hazardous, must be designed and constructed to minimize the possibility of the removal of the core of the valve with other than specialized tools.

(d) On service lines designed to operate at pressures in excess of 60 psig (414 kPa), the service line valve shall be the equivalent of a pressure lubricated valve or a needle type valve. Other types of valves may be used where tests by the manufacturer or by the user indicate that they are suitable for this kind of service.