[en] Full text: Radioactive materials and radiation sources are widely used in Cuba in medicine, industry and research. There are, in total, near 200 radioactive facilities around the country. For different reasons some of these facilities had reached to the end of their useful life and consequently they required decommissioning. The paper describes the actions taken for decommissioning of four radioactive facilities. Two laboratories, in which non-sealed radioactive sources for research purposes were used, as well as two industrial facilities that used sealed radioactive sources for industrial radiography and level detection respectively. The strategy for decommissioning included first the removal of disused sealed sources and radioactive waste. After that, a detailed radiological evaluation was carried out in each facility: dose rate and surface contamination measurements, analysis of relevant samples. Appropriate criteria for the release of the facilities from regulatory control were selected in accordance with national legislation and the further use of the installations. The results of radiological characterization demonstrated that neither decontamination nor dismantling activities were required in these cases for the release of the facilities from regulatory control. Based on the experience gained during the decommissioning of these laboratories and industrial facilities, recommendations for improving the decommissioning strategy for other radioactive facilities in the country are given. An important issued is related with the initial decommissioning planning, which have not been developed yet for all radioactive facilities in operation in Cuba at present. Another important conclusion is that immediate decommissioning is in most cases the best option for small facilities. (author)