---
kind: "section"
citation: "49 C.F.R. § 192.189"
title: "49"
number: "192.189"
heading: "Vaults: Drainage and waterproofing."
url: "https://uscodex.org/cfr/49/192.189"
---

# §192.189. Vaults: Drainage and waterproofing.

- (a) Each vault must be designed so as to minimize the entrance of water.
- (b) A vault containing gas piping may not be connected by means of a drain connection to any other underground structure.
- (c) Electrical equipment in vaults must conform to the applicable requirements of Class 1, Group D, of the National Electrical Code, NFPA-70 (incorporated by reference, see [§ 192.7](/cfr/49/192.7.md)).

## Notes

### Amendments

[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-76, 61 FR 26122, May 24, 1996; Amdt. 192-119, 80 FR 181, Jan. 5, 2015]

### 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. 192-76, 61 FR 26122, May 24, 1996; Amdt. 192-119, 80 FR 181, Jan. 5, 2015]