49 CFR 192.711
Transmission lines: General requirements for repair procedures.
(a)Temporary repairs. Each operator must take immediate temporary measures to protect the public whenever:#
(1)A leak, imperfection, or damage that impairs its serviceability is found in a segment of steel transmission line operating at or above 40 percent of the SMYS; and#
(2)It is not feasible to make a permanent repair at the time of discovery.#
(b)Permanent repairs. An operator must make permanent repairs on its pipeline system according to the following:#
(1)(i)Non-integrity management repairs for gathering lines and offshore transmission lines: For gathering lines subject to this section in accordance with § 192.9 and for offshore transmission lines, an operator must make permanent repairs as soon as feasible.#
(ii)Non-integrity management repairs for onshore transmission lines: Except for gathering lines exempted from this section in accordance with § 192.9 and offshore transmission lines, after May 24, 2023, whenever an operator discovers any condition that could adversely affect the safe operation of a pipeline segment not covered by an integrity management program under subpart O of this part, it must correct the condition as prescribed in § 192.714.#
(2)Integrity management repairs: When an operator discovers a condition on a pipeline covered under Subpart O-Gas Transmission Pipeline Integrity Management, the operator must remediate the condition as prescribed by § 192.933(d).#
(c)Welded patch. Except as provided in § 192.717(b)(3), no operator may use a welded patch as a means of repair.#