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Pipeline Safety: Integrity Management Program Modifications and Clarifications

Final rule.
This action modifies the integrity management regulations for hazardous liquid and natural gas transmission pipelines. The modifications include adding an eight-month window to the period for reassessing hazardous liquid pipelines; modifying notification requirements for operators of hazardous liquid and natural gas pipelines; repealing a requirement for gas operators to notify local authorities; and allowing alternatives in calculating pressure reduction when making an immediate repair on a hazardous liquid pipeline. This action is intended to improve pipeline safety by clarifying the integrity management regulations and providing operators with increased flexibility in implementing their integrity management (IM) programs.
72 FR 39012


Docket No. PHMSA-04-18938
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