Document History of RD-58 Thyroid Screening for Radioiodine

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Current status: Published July 2008

Document history

• July 2008: RD-58 published.
• April 2008: RD-58 presented to the Commission Tribunal for final approval. Read the Commission Meeting transcript and meeting minutes for more information.
• October 27, 2005 to October 27, 2006: Public Consultation period and trial use. The document was changed from a standard to a guide and was sent for public consultation and 1 year trial use. View Information Bulletin 05-13 for more information.

Document description

RD-58 provides guidance to licensees with respect to developing a thyroid screening program for volatile radioiodines.
RD-58 may be used by licensees to develop a thyroid screening program for workers handling volatile radioiodines, which may be required by licence conditions. Further to the licence conditions, this document includes recommendations for participation in the screening program, instrument selection, the screening method, monitoring periods, and validation procedures.

Relevant regulations

• Radiation Protection Regulations

Contact information

For questions or information directly related to RD-58, please contact:

Directorate of Environmental and Radiation Protection and Assessment
Canadian Nuclear Safety Commission
P.O. Box 1046, Station B
Ottawa, ON
K1P 5S9

Telephone: 1-800-668-5284
Fax: 613-995-5086
Email: info@cnsc-ccsn.gc.ca