As the final step of the nuclear facility life, decommissioning differs quite significantly from the operational period of life. Changing environment, development of new tools, “one shot” operations, production of huge amounts of waste, discrepancies between original design and the final layout of the facility, need for a global risk management with evolving radiation protection programme are some characteristics operators, health physicists, technicians are faced with when processing with dismantling operations. Moreover, regulatory requirements, choice for a dismantling strategy, safety and waste management, assessment and follow-up of doses, financial provisions and human resources management give still rise to many questions when a decommissioning project has to be set up. The main objective of the training course is to provide the participants with the basic requirements regarding the management of a decommissioning project and to share experience from ongoing decommissioning projects. Lectures will be provided by several SCK CEN experts and some external experts as well.