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CoC — Certificate of Conformance

Also known as: CoC · C of C · Certificate of Conformance

Supplier statement that the part conforms to PO requirements and cited specs.

A Certificate of Conformance (CoC) is a supplier-issued statement that the delivered part conforms to the purchase order's requirements and any cited specifications. CoC is common for expendables and consumables where 8130-3 is not required. Buyers review the CoC against operator quality requirements before install.

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FAA Form 8130-3Airworthiness approval tag for new and overhauled parts from FAA-approved sources.
EASA Form 1European airworthiness approval — the EASA equivalent of FAA 8130-3.
ATA 106 — Spec 2000 Chapter 11Trace pack standard for used-serviceable, surplus, or parts-out aviation material.

Canonical URL: https://partsperk.com/glossary/coc · Glossary entries are buyer-language definitions; not regulatory or engineering advice.

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