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PHMSA Advisory Bulletin on Exceedances of Max Allowable Operating Pressure

Posted in on Fri, Jan 18, 2013

The Pipeline and Hazardous Materials Safety Administration (PHMSA) has issued an Advisory Bulletin to inform owners and operators of gas transmission pipelines that if the pipeline pressure exceeds maximum allowable operating pressure (MAOP) plus the build-up allowed for operation of pressure-limiting or control devices, the owner or operator must report the exceedance to PHMSA on or before the fifth day following the date on which the exceedance occurs.  If the pipeline is subject to the regulatory authority of one of PHMSA’s State Pipeline Safety Partners, the exceedance must also be reported to the applicable state agency. http://www.gpo.gov/fdsys/pkg/FR-2012-12-21/html/2012-30770.htm

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