The following three dosimetry service providers are currently approved in Canada:
They offer whole-body and extremity thermo-luminescent dosimetry services (TLD). Monitoring periods are usually quarterly but more frequent monitoring is also available for pregnant workers. In cases where the dose limits are exceeded, the client is notified.
WorkSafeBC (WSBC) requires that: “Unless exempted by the Board, if a worker exceeds or may exceed the action level (1 mSv/y), the employer must ensure that the worker is provided with and properly uses an acceptable personal dosimeter”. It further requires that the employer must ensure that every worker who exceeds, or may exceed, the action level is fully informed of any potential reproductive hazards associated with radiation exposure. The Canadian Nuclear Safety Commission, on the other hand, requires that if there is reasonable probability that a worker who, by the nature of his/her work involving nuclear substances, may exceed the dose limit for the public of 1 mSv/y, should be informed of the risks of radiation exposure and be considered as a Nuclear Energy Worker (NEW).