# Supplier's Declaration of Conformity (SDoC) — Certification marks and hazardous-area classifications: cross-market equivalences For Supplier's Declaration of Conformity (SDoC), market / system is International; meaning is a type of conformity assessment that allows a supplier to make a first-party attestation that an object of conformity fulfils specified requirements; governing standard / law is ISO/IEC 17050-1:2004, recorded from its source on 2026-08-11. - **Designation:** Supplier's Declaration of Conformity (SDoC) - **Market / system:** International - **Meaning:** a type of conformity assessment that allows a supplier to make a first-party attestation that an object of conformity fulfils specified requirements _(verified: appears in the quote below)_ - **Governing standard / law:** ISO/IEC 17050-1:2004 ## What the source says > SDoC is a type of conformity assessment that allows a supplier to make a first-party attestation that an object of conformity fulfils specified requirements ## Source - https://casco.iso.org/attestations-of-conformity.html Last verified: 2026-08-11. Review by: 2027-08-11. Part of [Certification marks and hazardous-area classifications: cross-market equivalences](https://referencesource.org/certification-standards-equivalence/).