(a) Temporary repairs. Each operator shall 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, or distribution main operating at 125 psig (862 kPa) or more in a Class 3 or 4 location; 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) non integrity management repairs. The operator must make permanent repairs as soon as feasible;
(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 section 255.933(d) of this Part.
(c) Welded patch. Except a provided in paragraph 255.717(b)(3) of this Part, no operator may use a welded patch as a means of repair.