[en] A summary of nuclear power plant radiation safety activities within 1976-80 is presented. Major results of scientific and engineering cooperation between CMEA country-members in this field are reviewed. A number of radiation safety tasks is suggested to be added to the list approved in 1978 by the CMEA permanent commission Atomenergo, as follows: development of the environment protection requirements both under normal operation conditions and during accidents on Nuclear power plants, Nuclear heat supply plants, Nuclear heat-electricity supply plants; development of technical and organizational measures for the personnel exposure reduction during repair and fuel reloading operations at NPP; estimates of radiation conditions at the NPP site location both under normal operation conditions and during accidents