The nuclear action plan collaboration project betw een Norw egian and Russia Government,Radioisotope Thermoelectric Generators(RTG)technology and safety,removal,transfer,dismantling,storage,transportation and disposal of decommissioning process,hypothetical accident scenarios,dose monitoring,emergency measures,and other aspects betw een 2004—2009,are analyzed in risk and environmental impact assessment for decommissioning of RTG in northw estern Russia.The practices of risk and environmental impact assessment in RTG decommissioning have demo...