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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

Pipeline Safety: Identified Sites as Part of High Consequence Areas for Gas Integrity Management Programs

Notice; issuance of advisory bulletin.

On August 6, 2002, RSPA/OPS published a final rule on how to identify the populated areas near a pipeline for which additional protections would be required (67 FR 50824). These "high consequence areas" (HCAs) include not only population areas already identified by pipeline operators through the longstanding Class location definitions, but also "identified sites," 49 CFR 192.761(f). Inclusion of identified sites is intended to pick up isolated population areas which are not picked up through the Class location process. These could include isolated nursing homes, schools, and campgrounds that may be close enough to the pipeline to be at risk should there be a pipeline failure. Commenters expressed concerns that what was intended to be a relatively simple task, identifying certain sites as high consequence areas, could become a never-ending search. RSPA/OPS is providing guidance in this advisory bulletin to provide the necessary clarification. With this guidance, operators can identify sites in preparation for required assessments and integrity management programs. The public will receive the assurance that the search for "identified sites" for inclusion in integrity management programs is clearly understood and thorough. The advisory bulletin provides guidance on a good faith effort in conducting this search. Further, at a meeting of the Technical Pipeline Safety Standards Committee scheduled for July 31, 2003, RSPA/OPS has added to the agenda further discussion about the advisability of modifying the final rule language to include this advice.

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