Excerpts
Specialist, 1200 New Jersey Avenue SE, Washington, DC 20590, by phone at 202-738-3850 or email at
[email protected].
SUPPLEMENTARY INFORMATION:
I. General Discussion
Through this DFR, PHMSA is incorporating
by reference an update to a voluntary, consensus industry technical standard already
incorporated by reference within 49 CFR part 195. Specifically, PHMSA is updating the referenced edition of industry standard ASME B31.4, Pipeline Transportation Systems for Liquids and Slurries: ASME Code for Pressure Piping, B31, to the 2022 edition