To comply with Pipeline Safety Act requirements to confirm the operating pressure limits of certain natural gas transmission pipelines, PHMSA held a public workshop on its proposed ‘Integrity Verification Process’ (IVP) on August 7, 2013.  In response to feedback from stakeholders received after the workshop, the Agency announced on September 12, 2013 a revised IVP

To meet Congressional mandates with regard to confirming the operating pressure limits of certain natural gas transmission pipelines, PHMSA will conduct a workshop on the concept of Integrity Verification Process (IVP) on August 7, 2013.  78 Fed. Reg. 32010 (May 28, 2013). In addition, PHMSA released an initial draft approach for IVP in the