What is included in a CoC (Certificate of Conformity)?

Short answer: A CoC is a supplier declaration that the delivered goods conform to the agreed specification for the order. It is commonly used for incoming inspection, vendor approval, and audit files.

A standard CoC typically includes:

• Supplier information: company name, address (or registered info), and authorized issuer
• Customer / order reference: customer name, PO number, sales order number (as applicable)
• Product identification: product name, internal part number (if used), size and construction reference
• Specification reference: datasheet revision, drawing number, or agreed specification statement
• Quantity and shipment reference: quantity, packing list/invoice reference (as applicable)
• Lot / batch reference: lot number or batch reference where traceability is required and supported
• Conformance statement: confirmation that items meet the agreed requirements at shipment
• Date and signature: authorized signature (or digital sign-off) and issue date

Best practice for programs: If you need a specific CoC template, revision control format, or required fields (e.g., batch format, drawing revision, inspection reference), attach it to your RFQ so we can align the CoC output.

For our quality workflow and traceability approach, see Quality Guarantee. For product datasheets/PDFs, use Downloads.

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