Re: Requirements for an Approved Supplier List? No new suppliers in years
I sympathize with your challenge, believe me. But if we allow our system to be changed based on auditors likes and dislikes, we will always be at the mercy of the next auditor's whims. There is nothing wrong in improving your system when and if an external auditor points out a nonconformity, opportunity for improvement, a possible enhancement, etc. But we should not allow external parties, who do not have to live with and support the system, day in, day out to dictate us what to do, because of their personal preferences.
You say your registrar needs to be evaluated; I agree, but remember the monitoring and reevaluation of their performance means that, if they send auditors that are not consistent, you need to provide feedback and, potentially, require them to implement corrective action. After all, you are not certified by a specific auditor, but a certification body. If different auditors representing the CB subject you to inconsistent interpretations, you, as the customer of their service should provide them with an appropriate feedback.
Years ago we started with an "Approved Spplier List" that was included all vendors, everyone we had written a check to. Our auditors complained that the list was too long. We cut it back to only include suppliers that directly affected the finished product. This included heat treating, plating, and customer approved suppliers. It did not include outside machining services because we verified all that they did. Auditor liked the shorter list. We missed calibration and added them. We decided that if the supplier ended up on an AS9102 FAIR, it required approval. If not on the FAIR, then not on the list. Customer auditor liked this, Registrar auditor did not like this. Now we are going back to where we started, 15 years of audits ago.
So... Your registrar needs to be evaluated.

So... Your registrar needs to be evaluated.
You say your registrar needs to be evaluated; I agree, but remember the monitoring and reevaluation of their performance means that, if they send auditors that are not consistent, you need to provide feedback and, potentially, require them to implement corrective action. After all, you are not certified by a specific auditor, but a certification body. If different auditors representing the CB subject you to inconsistent interpretations, you, as the customer of their service should provide them with an appropriate feedback.