Getting onto a prime's approved-vendor list is the gate between a machining subcontractor and the work. Here is what the approval process checks, and how a supplier makes it faster to pass.
What is an approved-vendor list (AVL)?
An AVL is a buyer's controlled register of the suppliers it has vetted and cleared to receive work. In aerospace, defence and other regulated sectors, buyers are generally not permitted to place work outside the AVL — so approval is a prerequisite for winning anything, not a nice-to-have.
What do buyers check before approving a supplier?
Supplier approval is due-diligence across several dimensions:
- Certifications — ISO 9001 as a baseline; AS9100 and JOSCAR for aerospace and defence.
- Quality system — documented, independently audited, with real traceability.
- Capacity and capability — the right machines, and enough of them, for the work.
- Financial stability — will the supplier survive and scale?
- Audit — sometimes a physical visit to verify the shop matches the paperwork.
How can a subcontractor speed up approval?
The single biggest lever is arriving pre-qualified. A supplier that already holds the required certifications, is JOSCAR registered, and can immediately evidence traceability and capacity removes most of the friction — the buyer is confirming what is already documented rather than starting from zero.
How does Milltech support AVL approval?
Milltech comes to the table with ISO 9001:2015 (approved by LRQA), JOSCAR registration and Cyber Essentials Plus, plus full material and process traceability through Tricorn® ERP and CMM inspection records. That is the evidence pack most approval processes ask for. Send us the requirements from your supplier-approval questionnaire and we will map our documentation to them.
