Sealed Source Tracking System

The accompanying dataset contains all transactions catalogued in the Sealed Source Tracking System with annual updates. The SSTS is used in conjunction with the National Sealed Source Registry to track and report the movement of high- and very high-risk sealed sources within Canada. Sealed sources are radioactive nuclear substances that are encapsulated or bonded to a cover to prevent the loss of radioactive contents. Sealed sources are used in a variety of medical, industrial, commercial and academic and research applications. Categories of sealed sources range from 1 to 5, with 1 considered very high risk, and 5 considered very low risk. The dataset was generated by the Canadian Nuclear Safety Commission (CNSC) to produce the National Sealed Source Registry and Sealed Source Tracking System Annual Report, which is published on the CNSC’s website. The following data shows all transactions entered by CNSC licensees who are required to track their sealed source inventory.

Data and Resources

Additional Info

Field Value
Last Updated April 17, 2026, 18:26 (UTC)
Created April 17, 2026, 18:26 (UTC)
contact_email cnsc.im-gi.ccsn@canada.ca
contact_person {}
criticality_level ["general_public"]
data_dictionary []
geographic_scope []
open_canada_collection primary
open_canada_date_modified 2023-08-25 00:00:00
open_canada_date_published 2019-01-21 00:00:00
open_canada_keywords {"fr": ["matières radioactives", "Commission canadienne de sûreté nucléaire", "CCSN", "sources scellées", "suivi", "commerce"], "en": ["radioactive materials", "Canadian Nuclear Safety Commission", "CNSC", "sealed source", "tracking", "trade"]}
open_canada_subject ["economics_and_industry"]
sensitivity_level unrestricted
title_fr Système de suivi des sources scellées
update_frequency P1Y