49 C.F.R. § 192.353 Customer meters and regulators: Location.
Title 49 - Transportation
(a) Each meter and service regulator, whether inside or outside a building, must be installed in a readily accessible location and be protected from corrosion and other damage, including, if installed outside a building, vehicular damage that may be anticipated. However, the upstream regulator in a series may be buried. (b) Each service regulator installed within a building must be located as near as practical to the point of service line entrance. (c) Each meter installed within a building must be located in a ventilated place and not less than 3 feet (914 millimeters) from any source of ignition or any source of heat which might damage the meter. (d) Where feasible, the upstream regulator in a series must be located outside the building, unless it is located in a separate metering or regulating building. [35 FR 13257, Aug. 19, 1970, as amended by Amdt 192–85, 63 FR 37503, July 13, 1998; Amdt. 192–93, 68 FR 53900, Sept. 15, 2003]
Title 49: Transportation
PART 192—TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE: MINIMUM FEDERAL SAFETY STANDARDS
Subpart H—Customer Meters, Service Regulators, and Service Lines
§ 192.353 Customer meters and regulators: Location.