CNSC for Inspection and testing services Inspection Firms
Any inspection service provider that possesses, uses or transports sealed radioactive sources or exposure devices in Canada — in practice, every firm offering gamma radiography — and any firm supplying non-destructive examination services to a nuclear facility licensee. It binds the company through its licence and the technician through his CNSC certification; neither one substitutes for the other, and both are checked.
For inspection and testing services firms, CNSC compliance turns on the traceability chain from a result back to the instrument and the standard behind it. CNSC is enforced by Canadian Nuclear Safety Commission, which certifies personnel centrally rather than through the employer. In this sector the firm is audited by every client as well as by the scheme, and each client samples differently.
The CNSC does not certify NDT methods. It licenses the company and certifies the person who operates an exposure device. An inspection provider doing industrial radiography needs a Nuclear Substances and Radiation Devices licence covering use type 812, a named Radiation Safety Officer with documented training including a source retrieval course, a radiation protection programme built on ALARA, dosimetry from a CNSC-licensed dosimetry service, an Emergency and Operating Procedures manual, sealed source leak-test and device maintenance records, and certified Exposure Device Operators. The finding recorded most often is: An uncertified worker operating an exposure device, or a trainee not under direct supervision and continuous observation
Source: Verified August 2026 against CNSC published regulatory documents and pages: REGDOC-2.2.3, Personnel Certification, Volume I: Exposure Device Operators, Version 1.
| Factor | What applies | Why it matters |
|---|---|---|
| Sector | Inspection and testing services | The firm is audited by every client as well as by the scheme, and each client samples differently |
| Regime | Canadian Nuclear Safety Commission licensing and personnel certification for inspection service providers | Enforced by Canadian Nuclear Safety Commission |
| Personnel basis | Central or third-party certification through the scheme | Decides whether outsourced cover can carry the signature |
| Record this sector is judged on | The traceability chain from a result back to the instrument and the standard behind it | What the auditor opens before anything else |
| Documents demanded | Nuclear Substances and Radiation Devices licence covering use type 812 for industrial radiography, Completed "Request to Appoint a Radiation Safety Officer" form, with an RSO job description setting out roles, responsibilities, qualifications and authority, RSO training course certificate and, for use type 812, a source retrieval course training certificate, Emergency and Operating Procedures (EOP) manual, Radiation protection programme documentation demonstrating dose control and ALARA | Each has to survive being traced from a finished job |
| Methods in scope | RT, UT, MT, PT, ET, VT | Each needs its own procedure and qualified personnel |
| Renewal | Exposure Device Operator certification is renewed every five years. | Diarised from the certificate date, not the last audit |
What does CNSC require of a inspection and testing services firm?
Any inspection service provider that possesses, uses or transports sealed radioactive sources or exposure devices in Canada — in practice, every firm offering gamma radiography — and any firm supplying non-destructive examination services to a nuclear facility licensee. For this sector the binding detail is the traceability chain from a result back to the instrument and the standard behind it, because the firm is audited by every client as well as by the scheme, and each client samples differently.
Can an outsourced Level III cover CNSC in this sector?
Not for the certification itself: CNSC certifies personnel through the scheme rather than the employer. A consulting Level III still carries procedures, documentation, gap assessment and audit attendance, which is where most of the preparation work actually sits.
What gets a inspection and testing services firm a finding under CNSC?
An uncertified worker operating an exposure device, or a trainee not under direct supervision and continuous observation, Change of Radiation Safety Officer not reported to the CNSC within 15 days, Dosimetry obtained from a service not licensed by the CNSC where doses above 5 mSv per year are reasonably probable. These are records failures rather than capability failures — the work was done correctly and the evidence could not be produced, which under CNSC is treated the same as not having done it.
Which methods matter most for inspection and testing services under CNSC?
RT, UT, MT, PT, ET, VT. Each needs its own approved procedure and personnel qualified in that specific method — a Level III qualified in one method cannot approve another, and signing outside your own method list is among the most common findings involving a Level III.
How long does CNSC readiness take in this sector?
Documents take weeks. What cannot be compressed is documented experience and records history — on-the-job hours accrue in real time and calibration history cannot be back-filled. The firm is audited by every client as well as by the scheme, and each client samples differently, which is why firms that start when the audit is announced rather than scheduled collect findings.
How often is CNSC renewed?
Exposure Device Operator certification is renewed every five years. Renewal requires documentary evidence of successful completion of the EDO practical examination, and a written examination is additionally required after a significant interruption in work. Firms that diarise from the certificate date rather than the last audit avoid the lapse that forces a full reapplication.
Personnel certification under CNSC
Two separate things, and firms conflate them. Exposure Device Operator certification is central: the CNSC certifies EDOs under the Nuclear Substances and Radiation Devices Regulations, and no person other than a certified EDO, or a trainee acting under the direct supervision and continuous observation of one, may operate an exposure device. No employer written practice substitutes. NDE method certification inside Canadian nuclear work runs to CAN/CGSB-48.
What an auditor asks to see
- Nuclear Substances and Radiation Devices licence covering use type 812 for industrial radiography
- Completed "Request to Appoint a Radiation Safety Officer" form, with an RSO job description setting out roles, responsibilities, qualifications and authority
- RSO training course certificate and, for use type 812, a source retrieval course training certificate
- Emergency and Operating Procedures (EOP) manual
- Radiation protection programme documentation demonstrating dose control and ALARA
- Dosimetry records obtained from a CNSC-licensed dosimetry service
- Sealed source leak testing records, and quarterly and annual exposure device maintenance records
- Valid CNSC Exposure Device Operator certification cards for every operator, plus training logs for trainees
- Transport package registration and packaging documentation, one registration per certificate number
Related: the CNSC overview, CNSC audit preparation, outsourced ASNT Level III cover, a programme gap assessment and independent report validation.
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