If organization C welds a coupon and performs the required testing to create a PQR for it, yes.

I agree, but with a proviso that the contractor using the WPS for production places the WPS on their "letterhead" and they sign both the WPS and the PQR.

By welding a test coupon and subjecting it to the regiment of tests required by both Section IX and the construction code (post weld heat treatment and CVN if required), the contractor has qualified the WPS assuming it passes all the requisite tests.

Best regards - Al

Agree with the comments and agree your proposal is acceptable but you have a couple of errors in your proposal.
You cannot "develop" a WPS until you have the parameters from the PQR and what would Organisation A be signing the WPS for when it has not been qualified ?
Organisation A can write a "proposed" or "preliminary" WPS to provide guidelines to Organisation C but as Al stated, it is the resposibility of Organisation C to sign both the WPS and PQR.
Cheers,
Shane

Assuming that A agrees to B providing its WPS (probably qualified) to C. My former company may not have been so inclined.

The initial premise works as-is provided as all companies are part of an all-encompassing organization. Otherwise, Company 'C' would need to qualify a PQR and write a subsequent WPS.


Subject Description: Section IX, QW-201, Manufacturer's or Contractor's Responsibility
Date Issued: 03/19/1996
Record Number: BC95-482
Interpretation Number: IX-95-27
Question(s) and Reply(ies): Question: May a subcontractor use a WPS supported by a PQR which was qualified by
the contracting company and subsequently supplied to the subcontractor?
Reply: No.


Standard Designation: BPV Section IX
Edition/Addenda:
Para./Fig./Table No:
Subject Description: Section IX, QW-201, Manufacturer's or Contractor's Responsibility
Date Issued: 12/15/1997
Record Number: BC97-309
Interpretation Number: IX-98-02
Question(s) and Reply(ies): Question: May a manufacturer use another organization's Welding Procedure
Specifications in fabrication of pressure vessels contracted to that organization if the
manufacturer works to specifications controlling all fabrication processes from material
procurement to final delivery including QC examination provided by the contracting
organization?
Reply: No.