255.706 Transmission lines: leakage surveys.

(a)A leakage survey of each transmission line, and distribution main operating at 125 psig (862 kPa) or more in a Class 3 or 4 location, must be conducted at intervals not exceeding 15 months, but at least once each calendar year.#

(b)Leaks located shall be investigated promptly, and necessary action shall be taken in accordance with sections 255.805 and 255.807 of this Part.#