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How will PHMSA Pipeline Safety track changes to HCA information over time? When data fields are changed, will operators be able to clearly distinguish the new information from the old in NPMS?

April 26, 2017changes Data Fields HCA phmsa pipeline safety time track

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How will PHMSA Pipeline Safety track changes to HCA information over time? When data fields are changed, will operators be able to clearly distinguish the new information from the old in NPMS?

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PHMSA Pipeline Safety uses version numbers in naming HCA data layers. Visual comparison of different versions of the layers will reveal any differences in geographic information.