TITLE 49 - TRANSPORTATION

SUBTITLE B - OTHER REGULATIONS RELATING TO TRANSPORTATION

CHAPTER I - PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

SUBCHAPTER D - PIPELINE SAFETY

PART 195 - TRANSPORTATION OF HAZARDOUS LIQUIDS BY PIPELINE

subpart d - CONSTRUCTION

195.258 - Valves: General.

  (a) Each valve must be installed in a location that is accessible to authorized employees and that is protected from damage or tampering.

  (b) Each submerged valve located offshore or in inland navigable waters must be marked, or located by conventional survey techniques, to facilitate quick location when operation of the valve is required.