REGDOC-2.11.2 - Decommissioning

This regulatory document provides requirements and guidance regarding the planning and
preparation for as well as the execution and completion of decommissioning.
The CNSC defines decommissioning as the administrative and technical actions taken to allow
the removal of some or all of the regulatory controls from a facility, location or site where nuclear
substances are managed, used, possessed or stored. Decommissioning actions are the procedures,
processes and work activities (e.g., storage with surveillance, decontamination, dismantling or
cleanup) that are taken to retire a facility, location or site from service with due regard for the
health and safety of people and the environment.