National Gas Transmission owns and operates the gas National Transmission System (NTS) — a 5,000-mile pipeline network that transports gas from terminals and ports to every part of Britain.
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Operability_John West
Operating Margin Service Description
Operating Margins Consultation
Operating Margins OM - Further Update on Safety Case Demonstration to the Health and Safety Executive
Operating Margins Statement 2006-07
Operating Margins Statement 2007-08
Operating Margins Statement 2008-09
Operating Margins Statement 2009-10
Operating Margins Statement 2010-11
Operating Margins Statement 2012-13