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49 CFR 192.621 Interpretations

Transportation of natural and other gas by pipeline: minimum Federal safety standards:
Maximum Allowable Operating Pressure - High Pressure Distribution Systems (View the Regulation)

Date PHMSA ID Company (or Individual)
Apr 21, 2015 PI-14-0016 Northern Utilities / Unitil Corporation
Jan 23, 2015 PI-14-0005 California Public Utilities Commission
Feb 2, 1977 PI-77-006 Piedmont Natural Gas Company, Inc.
Nov 24, 1976 PI-76-072 North Carolina Utilities Commission
Sep 29, 1975 PI-75-0110 Arizona Corporation Commission
Jun 19, 1975 PI-75-0107 The Public Utilities Commission
Feb 13, 1973 PI-73-008 Iowa Public Service Company