The provisions of this code apply to all activities involving the exposure of workers to ionising radiations at work. Additional guidance can be found in documents dealing with special occupational groups and working situations. The provisions of this code offer guidance for the protection of workers against radiation risks from radiation sources at the workplace. The code covers the principles of dose limitation for workers but it does not include detailed guidance on the techniques used for the actual measurement and assessment of exposures and for their control. Such guidance is being prepared by the International Atomic Energy Agency (IAEA) in co-operation with the World Health Organization (WHO) and the ILO.