The ASME BPVC latest edition is always published on July 1. After Code revisions are approved by ASME, they may be used beginning with the date of issuance shown on the Code. The current ASME BPVC edition is mandatory no later than 6 months later (as of January 1 of following year). The date of order/contract is valid.
Governing ASME Code edition for a new edition always published on 1 July
Pressure Vessels
The Code Edition used for construction of a pressure vessel shall be either the Edition that is mandatory on the date the pressure vessel is contracted forby the Manufacturer, or a published Edition issued by ASME prior to the contract date, which is not yet mandatory.
Subcontracted parts
When a vessel Manufacturer subcontracts some of the construction to another Certificate Holder, the part Manufacturer shall construct the part to the Code Edition established for the entire pressure vessel.
Parts Built for Stock
Parts built for stock shall be constructed to either the Edition that is mandatory at the time of Code certification, or a published Edition issued by ASME prior to Code certification, which is not yet mandatory.
Parts Used From Stock
When a vessel Manufacturer uses a part from stock, the vessel Manufacturer shall ensure that the part fully satisfies all applicable Code requirements of the Code Edition used for construction of the complete vessel.
Exceptions
Changes in the Code and Code Cases that have been published prior to completion of the pressure vessel or part may include details critical to the intended service conditions of the pressure vessel and therefore should be considered by the Manufacturer. Application of such changes shall be a matter of agreement between the Manufacturer and the user. Specific incorporated Code provisions from later editions that have been applied to construction shall be noted in the “Remarks”section oft he Manufacturer’s Data Report.
See also Section VIII Div. 1 App. 43
