[en] Spent fuels for PWRs have been routinely transported and stored to the neighboring NPPs and to the dry storage facilities for PHWRs. Because spent fuel transportation may involve potential radiological risks such as dose risk and health effects for the public and the workers, both on-site and off-site spent fuel transportation need to be radiologically safety analyzed. Studies of SNF transportation risk assessment to Yucca Mountain have conducted by mainly Sandia National Laboratories using RADTRAN code since 1970s. RADTRAN code is no longer service and distributable due to their internal QA problems. Radiological transport risk assessment using INTERTRAN2 to benchmark RADTRAN4 was conducted and turned out no significant different between 2 codes. Risk assessment with on-site information in Korean NPPs will be made using INTERTRAN2 code in the near future.