Regulationcurrent
49 CFR 192.365
Service lines: Location of valves.
Current as of 2026-08-18 Government source
eCFR editorial compilationAuthoritative but unofficial
View source (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.#