The transportation of radioactive material involves a set of procedures as varied as they are complex, justifying its strong standardization. This article aims to demonstrate that the collaborative effort between two Brazilian licensing agencies, which resulted in the elaboration of a Joint Technical Note, was justified considering the legislative process. By consolidating various norms and procedures – from the configurations of packages containing radioactive material to the training program for drivers responsible for transportation, including environmental safety of routes – it proves to be a facilitator of the work for everyone involved in this activity. In conclusion, it is shown that there is strong standardization of this activity in Brazil and that the legislative process is dynamic, reflecting natural improvements in technical and legal aspects inherent to the nature of the material involved.