GD compliance: baseline surveys and management framework

摘要

PIPELINE INTEGRITY management for gas distribution pipelines (DIMP) will become an extension ofnthe PHMSA-DOT regulations. Parallels and exceptions are being identified on how best to adopt andnmodify the standing regulations 49 CFR Part 192 from the high pressure gas transmission systems to the lowernpressure, smaller diameter urban and metropolitan distribution systems. The threats are similar (with thenexception of corrosion in non-steel pipelines) but the consequences high due to population density of end users.nTherefore, as was required through the National Pipeline Mapping System (NPMS), the need for accuratenlocation of the lines and a management framework will be required.