ISO 22000 is an international food safety management standard that defines requirements for organizations in the food chain. It integrates quality management and HACCP principles. Key elements of an ISO 22000 food safety management system include interactive communication along the food chain to control hazards, and structured system management. Benefits include optimized resource use, improved documentation and planning, and acceptance globally. Prerequisite programs and HACCP are used to control hazards at each step of the food chain.