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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Archived Rulemaking: Passage of Instrumented Internal Inspection Devices

57-fr-54745.pdf (677.67 KB)

This notice proposes regulations requiring that new and replacement gas transmission lines and new and replacement hazardous liquid pipelines and certain carbon dioxide pipelines be designed and constructed to accommodate the passage of instrumented internal inspection devices (commonly referred to as "smart pigs"). However, the proposed rules do not apply to specific installations for which such design and construction would be impracticable. This rulemaking is mandated by statute.

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Last updated: Thursday, August 16, 2018