IA9100 Sub-Tier Flow-Down and Level-of-Control Register

Check what your PO terms pass down, decide and tell each supplier its level of control, and review the sub-tier lists that come back.

Free to use, change and copy inside your own organization. Editable Excel, plus a fillable PDF you can complete on screen.

IA9100 draft: based on the IAQG's published changes; IA9100 is not yet final, and the final text may change these topics and clause numbers.

The problem it solves

A customer rejects a lot for a finish problem. The parts are yours, but the cause is two tiers down: your machining supplier sent them out for a process you did not know was subcontracted, to a shop you had never heard of. Your purchase order said what to make, and nothing about who the supplier could use or what it had to pass down. The IA9100 draft keeps the expectation that suppliers control their own suppliers (8.4.1) and adds a new one: decide the level of control for each supplier and its sub-tiers, and tell them (8.4.3). This register keeps the PO terms, the levels and the sub-tier reviews in one place.

Who uses it, and when

Supplier quality engineers and buyers, with the quality manager who approves the levels. Once now, to check the PO terms and set a level for every active supplier; when a supplier is added or its risk changes; when a sub-tier list comes back; and at management review.

Part of

IA9100 Transition Package.

Companion to

The AS9100 Transition File, issue 4: Your supplier's supplier.

Clause references: IA9100 draft 8.4.1, 8.4.3 (with the 8.1 note on information security). Clause numbers only; the standards text is not reproduced, use your own licensed copy.

A management aid, not certification or a registrar audit. Using it does not by itself show conformity to AS9100D or any other standard.

Page 1 of the PDF. Every resource includes a worked example.