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49 CFR 192.463 Interpretations

Transportation of natural and other gas by pipeline: minimum Federal safety standards:
External Corrosion Control - Cathodic Protection (View the Regulation)

Date PHMSA ID Company (or Individual)
Jul 16, 1993 PI-93-039 Airborne Environmental Surveys
Nov 23, 1992 PI-92-062 Arizona Corporation Commission
Nov 7, 1991 PI-91-032 Airborne Environmental Surveys
May 19, 1989 PI-89-006 Memo: Internal
May 29, 1981 PI-81-011 Northwest Pipeline Corporation
Dec 20, 1971 PI-71-088 Cathodic Protection Service
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