In plain language
Canada's federal radiation regulations set worker limits of 50 mSv per year and 100 mSv over five years, a 50 mSv annual eye-lens limit, and 4 mSv for declared pregnancy, with required dosimetry, as low as reasonably achievable (ALARA) programs and pregnancy accommodation.
At a glance
- Type of study
- Regulation or standard
- Where
- Canada
- Topics
- Regulation and policyDosimetry and monitoringEye lens and cataractsPregnancy and reproductive healthSafety culture and compliance
- Summary based on
- a web page
What it found
Effective dose limits for nuclear energy workers are 50 mSv per one-year period and 100 mSv per five-year period; 1 mSv per year for non-workers.
Key figures: 50 mSv/year; 100 mSv/5 years; 1 mSv/year public
The lens of the eye equivalent dose limit for nuclear energy workers is 50 mSv per one-year dosimetry period; skin and hands/feet limits are 500 mSv.
Key figures: 50 mSv lens; 500 mSv skin and extremities
Pregnant workers who have declared pregnancy in writing have an effective dose limit of 4 mSv for the balance of the pregnancy, and licensees must accommodate them short of undue hardship.
Key figures: 4 mSv
Licensed dosimetry is required for workers reasonably likely to exceed 5 mSv effective dose or 50 mSv skin/extremity dose per year.
Key figures: 5 mSv effective; 50 mSv skin/extremities
Licensees must run a radiation protection program keeping doses ALARA through management control, training, exposure control and planning.
Limits to keep in mind
This is a regulatory text, not research; it applies to CNSC licensees under the Nuclear Safety and Control Act, and medical X-ray fluoroscopy staff may be regulated mainly by other (provincial) frameworks, which the text does not address.
Related research summaries
- Accidents of occupational exposure to ionizing radiation in radiology departments: risks, prevention, and management (2026, Narrative review)
- Occupational Protection in Interventional Radiology. A Joint Guideline of the Cardiovascular and Interventional Radiological Society of Europe and the Society of Interventional Radiology (2026, Guideline or consensus statement)
- SCAI/ASE/HRS/SIR/SVS Expert Consensus Statement on Enhanced Radiation Protection: Time for Mandatory and Urgent Action (2026, Guideline or consensus statement)
- SCAI Multi-Society Position Statement on Occupational Health Hazards (2020, Guideline or consensus statement)
- Occupational Radiological Protection in Interventional Procedures, ICRP PUBLICATION 139 (2018, Guideline or consensus statement)
How this summary was made
ORSIF prepared this summary with AI assistance from a web page of the paper. A program then checked that the passage supporting each finding appears word for word in that source. A person has not yet reviewed each summary, so read the original before relying on a number. ORSIF summarizes research and does not endorse any product or company. Report a problem with this summary.
Prepared November 3, 2026.