LAC 43:XIII.2949. Vault Maintenance [49 CFR 192.749]

A. Each vault housing pressure regulating and pressure limiting equipment, and having a volumetric internal content of 200 cubic feet (5.66 cubic meters) or more, must be inspected at intervals not exceeding 15 months, but at least once each calendar year, to determine that it is in good physical condition and adequately ventilated. [49 CFR 192.749(a)] B. If gas is found in the vault, the equipment in the vault must be inspected for leaks, and any leaks found must be repaired. [49 CFR 192.749(b)] C. The ventilating equipment must also be inspected to determine that it is functioning properly. [49 CFR 192.749(c)] D. Each vault cover must be inspected to assure that it does not present a hazard to public safety. [49 CFR 192.749(d)]