§192.721. Distribution systems: Patrolling.
49 C.F.R. § 192.721
The frequency of patrolling mains must be determined by the severity of the conditions which could cause failure or leakage, and the consequent hazards to public safety.
Mains in places or on structures where anticipated physical movement or external loading could cause failure or leakage must be patrolled—
In business districts, at intervals not exceeding 4 1/2 months, but at least four times each calendar year; and
Outside business districts, at intervals not exceeding 7 1/2 months, but at least twice each calendar year.
Notes, amendments, and revision history
Amendments
[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-43, 47 FR 46851, Oct. 21, 1982; Amdt. 192-78, 61 FR 28786, June 6, 1996]
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. 192-43, 47 FR 46851, Oct. 21, 1982; Amdt. 192-78, 61 FR 28786, June 6, 1996]