PHMSA Gas Transmission (GT) Integrity Management
Time: 09/02/2014 04:40 PM

Rule Section: §192.917(e)(2)

Cyclic fatigue.

Rule Hierarchy:

Rule Language:

An operator must evaluate whether cyclic fatigue or other loading condition (including ground movement, suspension bridge condition) could lead to a failure of a deformation, including a dent or gouge, or other defect in the covered segment. An evaluation must assume the presence of threats in the covered segment that could be exacerbated by cyclic fatigue. An operator must use the results from the evaluation together with the criteria used to evaluate the significance of this threat to the covered segment to prioritize the integrity baseline assessment or reassessment.

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