General
High Volume Excess Flow Valves: Meetings
Large Excess Flow Valve Team MeetingJune 23, 2009
The Large Excess Flow Valve Team Meeting was held in Crystal City, Virginia on June 23, 2009 to address the expansion of EFV utilization as recommended by NTSB in P-01-2. The event included representatives from pipeline regulatory...
Class Location Special Permits Documents
These documents outline the submittal guidelines and documents for PHMSA to consider operator special permit requests for class location changes in accordance with 49 CFR § 192.611 to confirm or revise the maximum allowable operating pressure (MAOP) of a natural gas pipeline after a change in...