Physical properties of the reactor core and engineering features of the GT-MHR reactor plant ensure that the temperature of the coated particle fuel is kept below 1600°C in any accidents with heat removal failure, including a complete failure of all active means of reactor emergency protection and shutdown. The effectiveness of fuel element claddings (coatings), which provide the main protective barrier for retention of fission products within fuel element boundaries, could, therefore, be maintained. With this measure, the radiation consequences of design basis and beyond design basis accidents do not exceed established limits. Altogether, this indicates that no protective measures would be required for the population beyond the buffer area.