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49 CFR 192.227 Interpretations

Transportation of natural and other gas by pipeline: minimum Federal safety standards:
Qualification of Welders (View the Regulation)

Date PHMSA ID Company (or Individual)
Nov 3, 1992 PI-92-060 Memo: Internal
Dec 31, 1990 PI-90-035 State of Minnesota Office of Pipeline Safety
Jan 28, 1976 PI-76-006 Tennessee Public Service Commission
Jun 15, 1971 PI-71-0113 Hawaii Public Utilities Commission
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