NUPIC Compliance for Inspection Service Providers
Suppliers of safety-related items and services to US nuclear plants, including NDT and inservice inspection service providers, calibration laboratories and commercial-grade item manufacturers. Personnel are qualified under employer-based certification, so a contracted Level III can sign the written practice and administer examinations for the firm.
A supplier qualifies for a NUPIC audit if it has at least five customers who are NRC licensees or international nuclear plant operators; sponsorship by five NUPIC members automatically enrolls the supplier into the audit schedule. NUPIC is not a regulator and issues no certificate. It is a cost-sharing mechanism: rather than every utility auditing the same NDT vendor separately to 10 CFR 50 Appendix B, member utilities run one joint audit, and the resulting report is shared with the membership so each licensee can use it to place the supplier on its own Approved Suppliers List. NUPIC distinguishes a full audit, which examines compliance with 10 CFR 50 Appendix B, from a commercial grade survey, which assesses the critical characteristics of the components supplied. It publishes the checklists used and an annual audit and survey schedule, and its programme documents are numbered — NUPIC Document 6 describes the joint audit programme and Document 11 the implementation guidelines.
Source: NUPIC official website (nupic.com) — home page, FAQ and Documentation pages, accessed 21 Aug 2026 — for eligibility (five NRC licensee or international operator customers), sponsorship by five members, the standard 33-month audit schedule and the 36-month fuel supplier cycle, approximately five-day audit duration conducted 8am–5pm Monday to Friday, the distinction between a full audit against 10 CFR 50 Appendix B and a commercial grade survey of critical characteristics, no vendor membership fee with the sponsoring customer facility bearing audit cost, the NUPIC Audit Checklist, NUPIC Survey Checklist and Calibration Checklist, the QA manual submission facility, and the document set: NUPIC Document 6 Joint Audit Program Description, Document 10 Joint Commercial Grade Survey Program Description, Document 11 Joint Audit and Checklist Implementation Guidelines, Document 21 Commercial Grade Item Survey Implementation Guidelines, Document 29 Commercial Grade Calibration Services Implementation Guidelines, plus 2024, 2025 and 2026 audit and survey schedules and the ILAC page referencing NEI-14-05-A Rev 1 and the ILAC MRA signatory list updated August 2024. Cross-referenced to 10 CFR Part 21 and Appendix B to 10 CFR Part 50, govinfo CFR annual edition revised 1 January 2024.
| Item | What applies | Why it matters |
|---|---|---|
| Authority | NUPIC — a committee of NRC licensees and international nuclear plant operators, self-governing, with audits performed by lead auditors and team members drawn from the member utilities | The body that issues, audits and can withdraw |
| Applies to | Suppliers of safety-related items and services to US nuclear plants, including NDT and inservice inspection service providers, calibration laboratories and commercial-grade item. | Whether this binds your firm at all |
| Personnel certification | Employer-based — the firm certifies its own, under a qualified Level III | Decides whether an outsourced Level III can sign for you |
| Renewal | Most vendors sit on NUPIC's standard 33-month audit schedule; fuel suppliers are on a 36-month cycle. Continued eligibility depends on retaining member sponsorship — an audit is arranged and paid for by the sponsoring utility facility, so a supplier that loses sponsors falls off the joint schedule and reverts to individual utility audits. | Diarise from the certificate date, not from memory |
| Methods in scope | UT, PAUT, RT, MT, PT, VT | Each method needs its own procedure and qualified personnel |
| Industries | Nuclear power generation, Nuclear inservice inspection service providers, Nuclear component and spare parts manufacturing, Calibration and testing laboratories serving nuclear licensees, Commercial grade item suppliers and dedicating entities | Where this regime shows up in contracts |
Who does NUPIC apply to?
Suppliers of safety-related items and services to US nuclear plants, including NDT and inservice inspection service providers, calibration laboratories and commercial-grade item manufacturers. A supplier qualifies for a NUPIC audit if it has at least five customers who are NRC licensees or international nuclear plant operators; sponsorship by five NUPIC members automatically enrolls the supplier into the audit schedule.
Can an outsourced Level III sign for NUPIC compliance?
Yes. NUPIC accepts employer-based certification, which places the obligation on the employer and allows a contracted Level III to write and sign the written practice, approve procedures and administer examinations. The Level III must be qualified in each method they sign for, and the employer still owns the records.
What documents does a NUPIC audit ask for?
Quality assurance manual, which NUPIC suppliers may submit for posting on the NUPIC website at no charge so member utilities can download it, NDE written practice and the personnel certification packages behind it — training, experience, written, practical and where applicable specific examinations, plus vision records, NDE procedures and, where inservice inspection is in scope, evidence of ASME Section XI Appendix VII qualification and Appendix VIII performance demonstration, Completed NUPIC Audit Checklist, NUPIC Survey Checklist or Calibration Checklist as applicable to the scope, Commercial grade dedication and critical characteristics documentation where the supplier is being surveyed rather than audited. Auditors open records before they open manuals, because a manual describes intent while records show practice. The most common failure is a documented system that does not match what the technicians actually do.
How often is NUPIC renewed?
Most vendors sit on NUPIC's standard 33-month audit schedule; fuel suppliers are on a 36-month cycle. Continued eligibility depends on retaining member sponsorship — an audit is arranged and paid for by the sponsoring utility facility, so a supplier that loses sponsors falls off the joint schedule and reverts to individual utility audits. Firms that diarise renewal from the certificate date rather than from the last audit avoid the lapse that forces a full reapplication.
What are the most common NUPIC findings?
Written practice and certification packages inconsistent — certificates issued for methods or techniques the training and experience records do not support, 10 CFR Part 21 procedure absent or not recognising that inspection, testing and consulting services are themselves basic components under the Part 21 definition, Commercial grade dedication performed without identifying critical characteristics or without the acceptance methods required, so the item never becomes a basic component, Calibration laboratory relied on without an evaluation, or with an ISO/IEC 17025 scope that does not actually cover the parameter and range being used. These recur because they are records problems rather than capability problems — the work is being done correctly and the evidence is not being kept.
Which NDT methods does NUPIC cover?
UT, PAUT, RT, MT, PT, VT, ET, Eddy current steam generator tube inspection. Each method in scope needs its own approved procedure and personnel qualified in that specific method; a Level III qualified in ultrasonics cannot sign for radiography.
Personnel certification under NUPIC
NUPIC certifies nobody and imposes no scheme of its own; it verifies that the supplier's programme meets 10 CFR 50 Appendix B and whatever code the licensees invoke, which for NDT means employer-based certification under a written practice built to ASNT SNT-TC-1A or ANSI/ASNT CP-189, and to ASME Section XI where inservice inspection is in scope. An outsourced Level III can therefore own the written practice, qualify and examine personnel, and approve procedures — but NUPIC auditors will look for the employer's own certification signatures, the objective evidence behind each certification package, and documented justification that the contracted Level III is qualified for that role.
The audit sequence
- Reach the eligibility threshold — at least five customers who are NRC licensees or international nuclear plant operators — and obtain sponsorship from five NUPIC members, which automatically enrolls the supplier into the standard audit schedule.
- NUPIC publishes the annual audit schedule and survey schedule; the sponsoring utility facility takes responsibility for arranging the audit and bears its cost. Vendors pay no NUPIC membership fee.
- Submit the quality assurance manual in advance, optionally posting it on the NUPIC site so member utilities can review it before the visit.
- Host the audit — typically about five days, conducted between 8am and 5pm Monday to Friday, longer or shorter with the complexity of the organisation — run against the NUPIC Audit Checklist for a full 10 CFR 50 Appendix B audit, or the Survey Checklist where critical characteristics of supplied components are the focus.
- Respond to findings with corrective action; the audit team closes them and issues the joint audit report into the NUPIC system for the membership.
- Each member utility independently accepts the report and places the supplier on its own Approved Suppliers List for a defined scope of supply. The next audit falls on the standard 33-month cycle for most vendors, or 36 months for fuel suppliers.
Documents an auditor asks for
- Quality assurance manual, which NUPIC suppliers may submit for posting on the NUPIC website at no charge so member utilities can download it
- NDE written practice and the personnel certification packages behind it — training, experience, written, practical and where applicable specific examinations, plus vision records
- NDE procedures and, where inservice inspection is in scope, evidence of ASME Section XI Appendix VII qualification and Appendix VIII performance demonstration
- Completed NUPIC Audit Checklist, NUPIC Survey Checklist or Calibration Checklist as applicable to the scope
- Commercial grade dedication and critical characteristics documentation where the supplier is being surveyed rather than audited
- 10 CFR Part 21 procedure covering evaluation of deviations and reporting of defects and failures to comply
- Calibration records with traceability, and for calibration and testing services any ISO/IEC 17025 accreditation being relied on under the NUPIC ILAC process and NEI 14-05A
- Internal audit programme records and the corrective action programme
- Approved sub-tier supplier list and evidence of sub-tier evaluation and flowdown
Findings firms get against NUPIC
- Written practice and certification packages inconsistent — certificates issued for methods or techniques the training and experience records do not support
- 10 CFR Part 21 procedure absent or not recognising that inspection, testing and consulting services are themselves basic components under the Part 21 definition
- Commercial grade dedication performed without identifying critical characteristics or without the acceptance methods required, so the item never becomes a basic component
- Calibration laboratory relied on without an evaluation, or with an ISO/IEC 17025 scope that does not actually cover the parameter and range being used
- Sub-tier NDT contractors used on safety-related scopes without evaluation, flowdown of Appendix B and Part 21, or surveillance
- Corrective action programme closing conditions adverse to quality without cause determination or extent-of-condition review
- Internal audits not covering all programme elements within the stated frequency, or performed by personnel with responsibility in the audited area
- Records retention and legibility failures — inspection records that do not identify the examiner, the observation, the acceptability, and the disposition of deficiencies
Related: the NUPIC overview, outsourced ASNT Level III cover, written practice development, NDT procedure development, a programme gap assessment, interim Level III cover.