Additional proposed revisions to natural gas reporting forms signal that PHMSA continues to rely on this data to analyze operator performance metrics and inform future rulemakings.  By notice issued on November 27, 2013, the Agency responded to comments on revisions to several natural gas reporting forms that it proposed in June (see prior posting) and to extend the comment period an additional thirty days.  78 FR 71033 (Nov. 27, 2013) .  Specifically, the Agency responded to comments from the Interstate Natural Gas Association of America (INGAA), the Pipeline Safety Trust (PST), and a manufacturer of distribution pipeline parts.  Among minor additional revisions to the natural gas incident, annual, and mechanical failure reporting forms, the Agency reinstated the section of the annual report form that collects the volume of product transported on transmission pipelines (PHMSA Form 7100.2-1, Part C).  Second, the Agency further revised sections of the natural gas annual report form that collects information on MAOP determination methods and MAOP verification (PHMSA Form 7100.2-1, Parts R and Q).  The Agency declined to remove the phrase “traceable, verifiable, and complete” from the instructions, as requested by INGAA, explaining the phrase is intended to provide guidance for operators to meet the statutory MAOP verification requirement at 49 USC 60139.  The Agency also explained that information gathered in these sections will inform future rulemakings, presumably regarding MAOP determination under the grandfather clause and MAOP verification.  The comment period on these revisions has been extended to December 27, 2013.