The Canadian Nuclear Safety Commission Laboratory

The Canadian Nuclear Safety Commission (CNSC) Laboratory provides independent scientific expertise that supports regulatory oversight of Canada's nuclear sector. By analyzing samples, calibrating radiation detection equipment and providing specialized technical expertise, the laboratory helps verify that nuclear activities are conducted safely and that people and the environment are protected.

The laboratory contributes to a wide range of regulatory activities, including environmental monitoring, compliance verification, emergency preparedness and nuclear forensics. Its work provides reliable scientific evidence that informs regulatory decisions.

Laboratory activities

The CNSC Laboratory plays an important role in the CNSC's Independent Environmental Monitoring Program. CNSC staff collect samples from publicly accessible areas near nuclear facilities, including air, water, soil, vegetation and local food. Laboratory scientists analyze these samples, helping to provide additional confidence that people and the environment around nuclear facilities are protected. The results are made publicly available through the CNSC website.

The laboratory also supports compliance verification activities. Samples collected during inspections at nuclear facilities across Canada are analyzed for radioactive and hazardous substances to help verify compliance with regulatory requirements and licence conditions. The results provide scientific evidence that supports regulatory decisions.

Accurate radiation measurements are essential to many CNSC activities. The laboratory maintains and calibrates radiation detection instruments used by CNSC staff to ensure reliable and traceable radiation measurements. These instruments support inspections and emergency response activities across Canada, helping staff detect, measure and assess radiological conditions in the field.

If you are a Government of Canada agency and would like to learn more about our Instrumentation Calibration Laboratory, contact us at laboratoryservices-servicesdelaboratoire@cnsc-ccsn.gc.ca.

Memberships and affiliations

As a member of Canada's nuclear forensic laboratory network, the CNSC Laboratory works with other government agencies, law enforcement and security partners to support investigations involving nuclear or radioactive materials. The laboratory also participates in national and international nuclear forensic exercises and technical collaborations that help strengthen nuclear security and emergency preparedness.

The CNSC Laboratory is also a member of the International Atomic Energy Agency (IAEA) and World Health Organization Network of Secondary Standards Dosimetry Laboratories, which promotes international consistency and traceability in radiation measurements.

In addition, through its membership in the IAEA’s network of Analytical Laboratories for the Measurement of Environmental Radioactivity, the laboratory participates in proficiency testing, comparison exercises and technical collaboration that help ensure laboratory methods and measurements remain aligned with internationally recognized standards and best practices.

Accreditation

The CNSC Laboratory maintains 2 independent Standards Council of Canada accreditations for ISO/IEC 17025:2017, an internationally recognized standard used to assess the competence of testing and calibration laboratories.

These accreditations help ensure that accredited methods and services are performed using validated procedures, qualified personnel and rigorous quality controls, resulting in reliable and defensible results.

Future CNSC laboratory facility

In 2024, the Government of Canada announced the TerraCanada Science and Innovation National Capital Area project, a new scientific hub that will include the CNSC Laboratory. The project is part of the broader Laboratories Canada initiative to modernize federal science infrastructure and strengthen collaboration among federal science organizations.

The new facility will build on the strengths of the existing laboratory through modernized infrastructure and purpose-built scientific spaces that support the CNSC's regulatory mandate. It will continue to provide services that support environmental monitoring, compliance verification, radiation instrument calibration and nuclear forensics.

Construction of the Class II facility component is subject to CNSC regulatory approval. Safety is a key consideration in the design and operation of the proposed Class II facility. Multiple safety systems, specialized shielding, routine monitoring and established radiation protection practices will work together to support the safe handling of radioactive materials and the protection of workers, the public and the environment.