---
kind: "section"
citation: "49 C.F.R. § 192.355"
title: "49"
number: "192.355"
heading: "Customer meters and regulators: Protection from damage."
url: "https://uscodex.org/cfr/49/192.355"
---

# §192.355. Customer meters and regulators: Protection from damage.

- (a) **Protection from vacuum or back pressure.** If the customer's equipment might create either a vacuum or a back pressure, a device must be installed to protect the system.
- (b) **Service regulator vents and relief vents.** Service regulator vents and relief vents must terminate outdoors, and the outdoor terminal must—
  - (1) Be rain and insect resistant;
  - (2) Be located at a place where gas from the vent can escape freely into the atmosphere and away from any opening into the building; and
  - (3) Be protected from damage caused by submergence in areas where flooding may occur.
- (c) **Pits and vaults.** Each pit or vault that houses a customer meter or regulator at a place where vehicular traffic is anticipated, must be able to support that traffic.

## Notes

### Amendments

[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-58, 53 FR 1635, Jan. 21, 1988]

### Authority

Authority: 30 U.S.C. 185(w)(3), 49 U.S.C. 5103, 60101 et. seq., and 49 CFR 1.97.

### Source

Source: 35 FR 13257, Aug. 19, 1970, unless otherwise noted.

### Amendments

[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-58, 53 FR 1635, Jan. 21, 1988]