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PHMSA to establish national standards for higher MAOP.(Washington watch)
- Article from:
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Underground Construction
- Article date:
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May 1, 2008
- Author:
- Barlas, Stephen
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The Pipeline and Hazardous Materials Safety Administration (PHMSA) issued a proposed rule which would allow gas transmission lines that meet certain standards to operate at higher maximum allowable operating pressure (MAOP) than are currently allowable. The greater latitude would only be extended to pipelines posing a low safety risk based on location, materials and construction. Higher MAOPs support energy conservation and greater throughput.
The PHMSA has been granting "special permits" to individual pipelines since 2006 for operation at higher than otherwise allowed MAOPs. The first three were granted to Maritime & Northeast, Alliance and Rockies Express, all on July ...