Supplier QMS development (IATF only)
Plain-language summary
Push your supply chain up the QMS ladder: unless the customer agrees otherwise, suppliers should be developed from basic conformity toward ISO 9001 certification and beyond (with automotive-software suppliers assessed appropriately).
What the clause is really asking
The default expectation: suppliers ISO 9001-certified, progressing via defined steps potentially toward IATF compliance/certification, based on risk and customer requirements. Automotive product software suppliers need software capability assessment (8.4.2.3.1).
What auditors look for
Auditors ask for your supplier QMS status register and the development plan for those below target: who is where on the ladder, what progression was agreed, customer waivers on file where the default is relaxed.
Typical evidence
Supplier certification register with expiries; development plans/letters; customer agreements on alternative approaches; software supplier assessments.
How to comply — recommendations
Track certification status and expiry per supplier (a column on your ASL). For small local suppliers below ISO 9001, document the risk-based plan or the customer's acceptance — silence is the finding.
Common nonconformities
No visibility of supplier certification status; expired certificates unnoticed; no development path for uncertified critical suppliers.
Related clauses
Builds on ISO 9001 8.4.2
Qlause provides interpretive guidance only and is not a substitute for the standard. Refer to your licensed copy of ISO 9001 / IATF 16949 for the authoritative text.