Pipeline Safety Interpretation PI-82-0101

Page 1PI-82-0101 March 23, 1982 A. J. Schellenberg, P.E. Gas Engineer, Lead Analyst Wyoming Public Service Commission Capitol Hill Building 320 W. 25th Street Cheyenne, WY 82002 Dear Mr. Schellenberg: This responds to your letter dated March 11, 1982, commenting on the reference to the American Society of Mechanical Engineers EASME) Boiler and Pressure Vessel Code, Section VIII, in Part 195. Judging from your comments, you apparently assume that reference specifications cited in section 195.3 apply to all sections of Part 195. Such is not the case. Reference specifications or sections of reference specifications apply only to those sections of Part 195 in which they are cited and only as cited. For example, the ASME Boiler and Pressure Vessel Code, Section VIII, is cited in section 195.124 and applies only to closures. Section 8 of API 1104 is cited in section 195.228(b) and applies only as cited there for a weld acceptance standard. We hope this clarifies the use of reference specifications in Part 195. The ongoing effort of the Materials Transportation Bureau to state regulations in performance terms will solve future problems of misunderstanding the applicability of reference specifications. Sincerely, SIGNED Melvin A. Judah Acting Associate Director for Pipeline Safety Regulation Materials Transportation Bureau#

Page 2CAPITOL HILL BUILDING 320 W. 25TH STREET CHEYENNE, WYOMING 82002 March 11, 1982 Mr. Melvin A. Judah Office of Pipeline Safety Regulation Material Transportation Bureau 2100 Second Street S.W. Washington, DC 20590 RE: Part 195 Reference technical specifications. Dear Mr. Judah: In reviewing Part 195, we find that you have ASME Section VIII listed as a reference technical specification. This specification requires the use of ASNE Section IX for the manual welding, and qualification of both the procedures and the welders. You do list API 1104 as a welder and welding procedure technical specification, however, this is not an acceptable substitute for ASME Section IX. I would recommend that this oversight be reviewed by your technical committees and added to Part 195 in order to have a viable document. A change of this nature should not add any cost to the operators, but it still will provide them with an acceptable set of technical specifications. Yours truly, A. S. Schellenberg, Gas Engineer, Lead Analyst#