49 CFR 195.266
Construction records.
A complete record that shows the following must be maintained by the operator involved for the life of each pipeline facility:#
(a)The total number of girth welds and the number nondestructively tested, including the number rejected and the disposition of each rejected weld.#
(b)The amount, location; and cover of each size of pipe installed.#
(c)The location of each crossing of another pipeline.#
(d)The location of each buried utility crossing.#
(e)The location of each overhead crossing.#
(f)The location of each valve and corrosion test station.#