scope:

This publication includes all written replies issued between the indicated dates by the ASME Staff on behalf of the ASME Boiler and Pressure Vessel Committee to inquiries concerning interpretations of the Boiler and Pressure Vessel Code. These interpretations are not a part of the Addenda or the Code.

These replies are taken verbatim from the original letters, except for a few typographical and editorial corrections made for the purpose of improved clarity. In some instances, a review of the interpretation revealed a need for corrections of a technical nature. In these cases, a revised reply is presented, bearing the original Interpretation Number with the suffix R and the original file number with an asterisk. Following these revised replies, new interpretations, and revisions to them issued during the same 6-month period, are assigned Interpretation Numbers in chronological order. Interpretations applying to more than one Code Section appear with the replies for each affected Section.

ASME procedures provide for reconsideration of these interpretations when or if additional information is available which the inquirer believes might affect the interpretation. Further, persons aggrieved by an interpretation may appeal to the cognizant ASME committee or subcommittee. As stated in the Statement of Policy in the Code documents, ASME does not "approve," "certify," "rate," or "endorse" any item, construction, proprietary device, or activity.

These replies apply to latest Edition and Addenda at the time of the inquiry or the Edition and Addenda stated in the reply. Subsequent revisions to the rules may have superseded the reply.

For detailed instructions on "Preparation of Technical Inquiries to the Boiler and Pressure Vessel Committee," refer to Appendix IIM.