Supplier Corrective Action Request (SCAR) — escalate a supplier non-conformance to a formal corrective action request, define response requirements, evaluate the supplier's 8D response, and verify effectiveness. Use when an NCR escalates to a SCAR, when a supplier delivers repeated non-conformances, or when a field failure is traced to a supplier. Covers ISO 9001 §8.4 and IATF 16949 §8.4.1.
