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Archived Rulemaking: Confirmation or revision of maximum allowable operating pressure, alternative method

53-fr-1043.pdf (119.5 KB)

This notice proposes to permit the use of an alternative method for determining the maximum allowable operating pressure (MAOP) of a gas pipeline when its class location (population density increases. The alternative would permit reduction of MAOP in direct proportion to a previous test pressure. The current rule unnecessarily requires retesting even though the previous test provides an adequate margin of safety above the MAOP.

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Last updated: Thursday, August 16, 2018