192.365—Service lines: Location of valves.
(a) Relation to regulator or meter.
Each service-line valve must be installed upstream of the regulator or, if there is no regulator, upstream of the meter.
(b) Outside valves.
Each service line must have a shut-off valve in a readily accessible location that, if feasible, is outside of the building.
(c) Underground valves.
Each underground service-line valve must be located in a covered durable curb box or standpipe that allows ready operation of the valve and is supported independently of the service lines.