HS37 – Radioisotope Permits

Records of permits for the possession and use of nuclear substances.

Related Records | Responsible Unit | Information Steward | Information Confidentiality Classification | Retention | Disposition | Authority | Retention RationaleVersion Information

Content & Scope

The University is licensed to possess and use nuclear substances and radiation devices under a consolidated licence issued by the Canadian Nuclear Safety Commission. Control of radioactive substances is maintained through an internal permit system.

This records class excludes dosimetry records for individual workers, records related to radiation monitoring, records related to training of individual workers maintained in the human resources management system, and records related to x-ray sources.

The records include applications for radioisotope permits, permits, decommissioning records, and worker registration and training records.

Related Records

  • For dosimetry records, see HS35 – Radiation Dosimetry Reports.
  • For records of radiation monitoring, see HS36 – Radiation Monitoring.
  • For records of training maintained in the human resources management system, see HR05 – Human Resources Management System.
  • For records related to x-ray sources, see HS39 – X-Ray Permits.

Responsible Unit

Safety Office.

Information Steward

Vice-President, Administration & Finance.

Information Confidentiality Classification



  • Records related to worker registration and training: 3 years after termination of work under the permit.
  • All other records: Permanent.

Note: The Canadian Nuclear Safety Commission must be advised at least 90 days in advance of the disposal of any records related to the University's consolidated licence.


Secure Destruction.


Responsible Units should document the disposal/destruction of official records using the University records destruction form or equivalent documentation, to verify that we are following our records retention rules.


  • Nuclear Safety and Control Act; SOR/2000-202: General Nuclear Safety and Control Regulations.
  • SOR/2000-203: Radiation Protection Regulations; SOR/2000-207: Nuclear Substances and Radiation Devices Regulations.
  • Canadian Nuclear Safety Commission Regulatory Guide G-121: Radiation Safety in Educational, Medical and Research Institutions.

Retention Rationale

The retention periods are based on SOR/2000-207: Nuclear Substances and Radiation Devices Regulations, s. 36 (2) which requires that worker training records be retained for "three years after the termination of employment of the worker" and the Limitations Act, 2002, s.17 under which" there is no limitation period in respect of an environmental claim that has not been discovered."

Approval Date

19 December 2011