It is a Food Safety Management System applicable to any organization involved in the food chain. ISO 22000 allows a company to display their customers that they have a food safety management system in place.
A major resulting benefit is that ISO 22000 will make it easier for organizations worldwide to implement the Codex HACCP (Hazard Analysis and Critical Control Point) system for food hygiene in a harmonized way, which does not vary with the country or food product concerned.