On October 1, 2019, the Pipeline and Hazardous Materials Safety Administration (PHMSA) published amendments to 49 CFR Parts 191 and 192 in the Federal Register issuing the Pipeline Safety: Safety of Gas Transmission Pipelines: MAOP Reconfirmation, Expansion of Assessment Requirements, and Other Related Amendments Final Rule (Final Rule).
The Final Rule requires that for on-shore steel transmission pipelines in an High Consequence Area (HCA), Class 3 or 4 location without Traceable, Verifiable and Complete (TV&C) records for §192.619(a)(2) (pressure testing, including records required by §192.517(a)) ; or where the Maximum Allowable Operating Pressure (MAOP) was established based on the Grandfather Clause and the MAOP creates a stress ≥ 30% of the Specified Minimum Yield Strength (SMYS), an operator will need to reconfirm the MAOP in accordance with the provisions of §192.624.
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