This study aims to propose requirements for developing an integrated classification system for disaster and safety information by analyzing classifications currently used in disaster and safety-related organizations in Korea. To do that, this study first analyzed existing disaster category classifications. Then, it collected classifications currently used in disaster and safety-related organizations, and through interviews with practitioners, analyzed considerations to manage disaster and safety information comprehensively. The analysis shows that to develop a disaster category classification, consistency, exhaustivity, systemicity, and disasters frequently occurring in Korea should be considered. In addition, this study suggests a facet classification system for disaster and safety information given the intricacy of disaster and safety management and the occurrence of compound disasters.