49 C.F.R. § 195.420 Valve maintenance.
Title 49 - Transportation
(a) Each operator shall maintain each valve that is necessary for the safe operation of its pipeline systems in good working order at all times. (b) Each operator shall, at intervals not exceeding 7 (c) Each operator shall provide protection for each valve from unauthorized operation and from vandalism. [Amdt. 195–22, 46 FR 38360, July 27, 1981; 47 FR 32721, July 29, 1982, as amended by Amdt. 195–24, 47 FR 46852, Oct. 21, 1982]
Title 49: Transportation
PART 195—TRANSPORTATION OF HAZARDOUS LIQUIDS BY PIPELINE
Subpart F—Operation and Maintenance
§ 195.420 Valve maintenance.