The INB (Brazilian nuclear industries) act on the nuclear fuel cycle, from uranium mining to fuel production. In order to maintain and improve the security of the operations and the competence of the staff, continuing education and training in radiation protection cannot be neglected. This paper describes the pedagogical concept of the training in radiation protection conducted in three uranium production units: the Uranium Concentration Unit at Caetit6 (URA), state of Bahia, the Ore Treatment Unit (UTM), at Polos de Caldas, state of Minas Gerais and the Unit of Heavy Minerals at Buena (UMP), state of Rio de Janeiro. It also describes a pilot training performed in 2004. The groups of workers to be trained are here characterized, as well as the profile of the trainers, the level and kind of trainings and their frequency. At the end of training, workers were subjected to a test and a grade was awarded. At URA 79 workers were trained during 9 h, the grades they obtained ranged from 7.5 to 10. At UTM; 200 workers were trained, their grades ranged from 8.8 to 10; Finally, at UMP 151 workers were trained, their grades ranged from 8.6 to 9.0. Thus a total of 180 h for 430 employees was spent training, no one flunked. Currently, the general training has been abolished since it hindered production, and the option is now to train small groups of workers when they join their Units, and also all along the year were in small classes.