Procurement and supplier QA covers the requirements, processes, and oversight activities that govern how nuclear organisations buy items and services from external suppliers. NQA-1 Requirement 7 and 10 CFR 50 Appendix B Criteria IV and VII establish the core requirements. The fundamental principle is that quality cannot be inspected into a purchased item at receipt, it must be built in at the source. This means requirements must flow to suppliers before work begins, supplier capability must be verified before award, and oversight during production must be commensurate with the safety significance of what is being supplied.
Quality requirements flow-down
Procurement documents must contain or reference the quality requirements applicable to the item or service being procured. For safety-related items, this means specifying the applicable QA standard (NQA-1, CSA N286, ISO 19443, or CSA N299 at the appropriate category), the applicable codes and standards including revision, technical requirements, inspection hold points and witness points, documentation requirements, right-of-access provisions, and 10 CFR 21 reporting obligations for US-jurisdictional items.
Vague or incomplete procurement documents are one of the most common root causes of supplier quality problems. A supplier who does not understand what quality program is required cannot be expected to implement one. The purchase order is the primary tool for communicating requirements; verbal agreements and informal understandings are not substitutes for documented procurement requirements.
Right of access: QA procurement requirements should include the right of the purchaser, and, for US-regulated items, the NRC, to inspect the supplier's facilities, activities, and records. This right-of-access provision is a regulatory requirement for nuclear procurement and is routinely verified during utility and regulatory audits. Suppliers who resist or restrict access raise immediate concerns about QA program transparency.
Supplier qualification methods
Before placing an order, the purchaser must establish that the supplier has the capability to meet the quality requirements. NQA-1 Requirement 7 identifies several acceptable qualification methods: evaluation of objective evidence from the supplier's previous performance (maintaining an Approved Supplier List); review and acceptance of the supplier's QA program documentation; pre-award survey or audit; or third-party certification to an applicable standard (CSA N299 or ISO 19443). The method should be proportionate to the safety significance of the item and the supplier's prior performance record.
An Approved Supplier List (ASL) is the practical mechanism most utilities and major nuclear contractors use to manage qualified suppliers. Each entry records the supplier's name, qualified scope, qualification basis, and re-qualification schedule. Using a supplier not on the ASL for a safety-related procurement without documented justification and a supplementary qualification activity is a quality program violation.
Source inspection and surveillance
For high safety-significance items, receipt inspection alone is insufficient. Source inspection, performed at the supplier's facility during or after production, allows problems to be caught before items are shipped. At source inspection, the purchaser's inspector or their representative reviews production records, witnesses inspections, and verifies that work is being performed in accordance with the approved QA program and the purchase order requirements.
Surveillance activities, where the purchaser's representative periodically monitors supplier operations without formal inspection hold points, provide ongoing quality assurance between scheduled source inspections. The frequency and scope of source inspection and surveillance should be risk-based and documented in the procurement plan or source inspection program: higher frequency for new suppliers, complex items, or suppliers with prior quality issues; reduced frequency for long-established suppliers with consistently clean records.
Receipt inspection and certificates of conformance
Items received at a nuclear facility must be inspected to verify they are the correct item, in the correct quantity and condition, and accompanied by the required documentation. Certificates of conformance (CoCs) document that the supplier performed required inspections and tests and the item meets specified requirements. Receipt inspection verifies that CoCs reference the correct revision of applicable requirements, that traceability documentation, material test reports, NDE reports, dimensional inspection records, is complete, and that physical condition is consistent with the documentation.
Items received without required documentation should be quarantined as suspect items and not placed into service until documentation is resolved. A CoC that references a superseded code revision, lacks the required certification basis, or was issued by a person without documented authority is not an acceptable quality record. Receipt inspection is the last opportunity to catch supplier documentation failures before nonconforming items enter the quality inventory; it should not be treated as a formality.
Forged Operations manages the complete supplier QA lifecycle, qualified supplier lists, pre-award surveys, source inspection scheduling, CoC tracking, and receipt inspection records. AI flags documentation gaps at receipt and monitors supplier performance trends across all active procurements.
References
- American Society of Mechanical Engineers. ASME NQA-1-2022: Quality Assurance Requirements for Nuclear Facility Applications, Requirement 7 — Control of Purchased Items and Services. New York: ASME, 2022.
- U.S. Nuclear Regulatory Commission. "Criterion IV — Procurement Document Control and Criterion VII — Control of Purchased Material, Equipment, and Services." Code of Federal Regulations, 10 CFR 50 Appendix B. Washington, D.C.: NRC.
- CSA Group. CSA N299.1:16 — Quality Assurance Program Requirements for Supply of Items and Services for Nuclear Power Plants, Category 1. Toronto: CSA Group, 2016.
- International Atomic Energy Agency. Nuclear Safety and Security Glossary, Edition 2022. Vienna: IAEA, 2022.