On July 31, 2008, the Government issued the construction and operation permit for the first low andintermediate level radioactive waste disposal facility in the Republic of Korea. In this paper, thefundamental regulatory framework, regulatory requirements and technical standards of the disposalfacility are introduced, and the phased review process adopted for evaluation of the safety of the facilityis briefly described. The Atomic Energy Act sets forth a stepwise regulatory framework for the whole life-cycle of the disposal facility such as siting, design, construction, operation, closure and institutionalcontrol. More detailed regulatory requirements and technical standards are stipulated in the subsequentregulations of the Atomic Energy Act and a series of Notices issued by the Ministry of Eduction, Scienceand Technology. The Korea Institute of Nuclear Safety, as entrusted by the Ministry under the AtomicEnergy Act, conducted safety review on the disposal facility, and evaluated the compliance with relevantcriteria in all technical elements (i.e. siting and structural safety, radiological environmental impact,operational safety, systems and components, quality assurance, and total systematic performanceassessment, etc.). The overall safety review process can be phased into inception phase, initial reviewphase, main review phase and completion phase. The review results were reported to and deliberated bythe five Sub-committees of the Special Committee on Nuclear Safety, and then reported to the Ministry.The Ministry issued the construction and operation permit of the disposal facility through the deliberationof the review results by the Nuclear Safety Commission. Hereafter, the safety of the repository will bereassured by a series of subsequent regulatory inspections and reviews under the Atomic Energy Act. Inaddition, the licensee's continuous implementation of the "Safety Promotion Plan" may also enhance thelong-term safety of the repository and contribute to build-up the confidence of the safety case.