CNSC Compliance for Inspection Service Providers
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. Personnel certification is central or third-party here, so the firm cannot certify its own technicians internally.
It binds the company through its licence and the technician through his CNSC certification; neither one substitutes for the other, and both are checked. 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. On nuclear plant pressure-retaining components the NDE method certification requirement comes from the CSA N285 series and points at CAN/CGSB-48.9712 rather than at any CNSC document.
Source: Verified August 2026 against CNSC published regulatory documents and pages: REGDOC-2.2.3, Personnel Certification, Volume I: Exposure Device Operators, Version 1.1, last modified 19 December 2022, made under the Nuclear Substances and Radiation Devices Regulations pursuant to the Nuclear Safety and Control Act, which references CSA PCP-09, Exposure Device Operator Personnel Certification Guide – Revision 1, published August 2021; REGDOC-1.6.1, Licence Application Guide: Nuclear Substances and Radiation Devices, Version 2.1 (Version 2 superseded Version 1 of October 2015), for use type 812 and the application content; REGDOC-2.5.7, Design, Testing and Performance of Exposure Devices, Version 1.1; REGDOC-2.7.1, Radiation Protection, and REGDOC-2.7.2, Dosimetry, Volumes I and II; Radiation Protection Regulations (SOR/2000-203) for dose limits and the licensed dosimetry service threshold; CNSC "Exposure device operators" and "Certified exposure device operators" pages. The NRCan NDTCB role as qualifying body for the EDO written examination is confirmed on the NRCan NDTCB FAQs page. The Canadian nuclear NDE certification position (CAN/CGSB-48.9712 required, SNT-TC-1A accepted for ASME-stamped components with AIA and licensee agreement) is taken from WNA CORDEL report 2014/003, "Certification of NDE Personnel — Harmonization of International Code Requirements", October 2014, and should be re-checked against the current CSA N285.0 and N285.4 editions (N285.4:23 is the eighth edition) before being relied on contractually.
| Item | What applies | Why it matters |
|---|---|---|
| Authority | Canadian Nuclear Safety Commission (CNSC), acting under the Nuclear Safety and Control Act and its regulations | The body that issues, audits and can withdraw |
| Applies to | Any inspection service provider that possesses, uses or transports sealed radioactive sources or exposure devices in Canada — in practice, every firm. | Whether this binds your firm at all |
| Personnel certification | Central or third-party certification required | Decides whether an outsourced Level III can sign for you |
| Renewal | 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. Since 1 January 2017 only EDO cards issued on or after 1 February 2013 are recognised, and cards must not be expired. The CNSC expects the practical examination to be administered by a certified EDO who administers examinations at an NRCan Authorized Examination Centre, or who has held certification for at least five years, or who has been authorised by their licensed employer to conduct practical examinations. Company licences run for the term stated on the licence and are renewed by application; dose limits for nuclear energy workers under the Radiation Protection Regulations are 50 mSv in a one-year dosimetry period and 100 mSv over five consecutive years, with a licensed dosimetry service required where there is a reasonable probability of exceeding 5 mSv in a year. | Diarise from the certificate date, not from memory |
| Methods in scope | RT, UT, MT, PT, ET, VT | Each method needs its own procedure and qualified personnel |
| Industries | Nuclear power generation, Nuclear fuel cycle and waste management, Industrial radiography services, Oil and gas construction and fabrication, Pipeline construction | Where this regime shows up in contracts |
Who does CNSC apply to?
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.
Can an outsourced Level III sign for CNSC compliance?
Not for the certification itself. CNSC requires central or third-party personnel certification, so technicians are certified by the scheme rather than by the employer. A consulting Level III still adds value on procedures, documentation, gap assessment and audit attendance — but cannot substitute for the scheme's own certification.
What documents does a CNSC audit ask for?
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. 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 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. Since 1 January 2017 only EDO cards issued on or after 1 February 2013 are recognised, and cards must not be expired. The CNSC expects the practical examination to be administered by a certified EDO who administers examinations at an NRCan Authorized Examination Centre, or who has held certification for at least five years, or who has been authorised by their licensed employer to conduct practical examinations. Company licences run for the term stated on the licence and are renewed by application; dose limits for nuclear energy workers under the Radiation Protection Regulations are 50 mSv in a one-year dosimetry period and 100 mSv over five consecutive years, with a licensed dosimetry service required where there is a reasonable probability of exceeding 5 mSv in a year. 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 CNSC findings?
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, Quarterly or annual exposure device maintenance records missing or incomplete. 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 CNSC cover?
RT, UT, MT, PT, ET, VT. 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 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-48.9712 for radiographic, ultrasonic, magnetic particle, liquid penetrant and eddy current methods, with one documented carve-out: for ASME-stamped components, SNT-TC-1A qualification has been accepted where the authorized inspection agency and the licensee both agree.
The audit sequence
- Apply for the licence following REGDOC-1.6.1, Licence Application Guide: Nuclear Substances and Radiation Devices, selecting the use types the work requires.
- Appoint and evidence the Radiation Safety Officer, including the job description, qualifications, RSO training certificate and the source retrieval course certificate required for industrial radiography.
- Submit the radiation protection programme, the Emergency and Operating Procedures manual, operating procedures, safety and emergency equipment inventory, and personnel qualifications for specialised incident response.
- CNSC reviews the application and issues the licence with conditions limiting activities, locations, nuclear substances and devices.
- Certify the operators: candidates complete vocational and on-the-job training, then pass the written examination — the NRCan NDTCB is the qualifying body for the EDO written examination — and the practical examination.
- Operate under continuing obligations: dosimetry through a licensed service, leak testing, quarterly and annual device maintenance records, and notification to the CNSC within 15 days of a change in the RSO or the RSO position.
- CNSC compliance verification through desktop review and on-site inspection, followed by licence renewal on its stated term.
Documents an auditor asks for
- 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
Findings firms get against 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
- Quarterly or annual exposure device maintenance records missing or incomplete
- Sealed source leak test overdue against the licence condition
- Emergency and Operating Procedures manual not current, or not available at the work site
- RSO appointed without the source retrieval course certificate required for use type 812
- EDO card issued before 1 February 2013 still being presented as valid
- Transport packaging used without the corresponding package registration
Related: the CNSC overview, outsourced ASNT Level III cover, written practice development, NDT procedure development, a programme gap assessment, interim Level III cover.