This Aerospace Standard (AS) documents the requirements for implementing Nadcap industry consensus-based accreditation/certification programs. Under these programs a supplier accredited product, process, or service is authorized by Nadcap to use the program's mark (a mark of conformity) and a certification to indicate that the accredited product, process, or service is in compliance with applicable standards, audit criteria, and/or specifications. The procedures in this document are based on ISO/IEC Guides for third-party certification, registration, and accreditation/certification programs where these guides do not violate country laws. The adoption of these guides allows International harmonization of requirements for certification, registration, and accreditation. Covered within this document and referenced documents are the operations of the Nadcap Management Council with its committees and task groups, Nadcap staff and field personnel, procedures for conducting audits, awarding accreditation, and continuing surveillance of suppliers. Supported recognized consensus standards and/or audit criteria define requirements for supplier compliance to Nadcap requirements for each individual product, process, or service to be accredited.