GB/T 46450-2025

This standard provides a unified framework for assessing the full scope of losses—including direct economic damage, indirect impacts, and social effects—following particularly major natural disasters in China. It is applied by government agencies, emergency management departments, and disaster relief organizations to guide post-disaster surveys, data collection, and loss calculations for events like large earthquakes, floods, or typhoons. The directive ensures consistent, comparable evaluation results to support resource allocation, recovery planning, and policy-making at national and provincial levels.