Abstract
This article provides an overview and comparison of software tools to predict the public radiation effect under normal and off-normal NPP operating conditions. The main characteristics, functional features, advantages and disadvantages of the software packages RESRAD, CROM, PC-CREAM 08®, ESTE Annual Impacts, РОМ, ESTE, NOSTRADAMUS, RECASS, RODOS were addressed. Criteria for assessing the quality and efficiency of software tools were highlighted. The optimal computational toolware applicable to the NPP normal (CROM package) and off-normal (RODOS system) operating conditions was substantiated.