ASME BPVC 2023 Section I

MANDATORY APPENDIX VI
ESTABLISHING GOVERNING CODE EDITIONS, ADDENDA, AND
CASES FOR BOILERS AND REPLACEMENT PARTS
VI-1 GENERAL
After Code revisions are approved by ASME, they may
be used beginning with the date of issuance shown on the
Code. Except as noted below, revisions become mandatory
6 months after the date of issuance. Code Cases are permissible
and may be used beginning with the date of approval
by ASME. Only Code Cases that are specifically identified
as being applicable to this Section may be used. At the time
a Code Case is applied, only the latest revision may be used.
Code Cases that have been incorporated into this Section
or have been annulled shall not be used.
Changes to the Code and Code Cases related to design,
material, fabrication, examination, inspection, testing,
overpressure protection, and field assembly made
prior to completion of the boiler or replacement part
may be critical to the intended service conditions of
the boiler. These changes must be considered by the
Manufacturer. Application of such changes shall be a
matter of agreement between the Manufacturer and
the user.
As used in this Mandatory Appendix, the term
“Inspector” shall be considered to include “Authorized
Inspector,” “Qualified Inspector,” and “Certified Individual,”
as applicable.
VI-2 DESIGN
The Manufacturer of the completed boiler see PG-104
shall establish the Code Edition, Addenda, and Code Cases
to be used for design of a boiler, including parts thereof, or
a replacement part to be stamped with the ASME Certification
Mark required by this Section.
a Except as provided in b and c, the Code Edition
and Addenda used to design a boiler, parts thereof, and
replacement parts shall be either those that are mandatory
on the date the boiler or replacement part is
contracted, or those that have been approved and
issued by ASME prior to the contract date but are not
yet mandatory see VI-1.
b Existing pressure parts that have been stamped and
certified to an earlier or later edition and addenda than
those used for design, and that have never been placed in
service i.e., they were placed in stock for future use may
be used provided they are acceptable to the Manufacturer.
c It is permitted to provide a replacement part “in
kind” i.e., identical in fit and material to the part
being replaced for an existing boiler and to certify the
part as meeting the Code Edition and Addenda to
which the existing boiler is certified.