This document provides guidance on the key changes between ISO 22000:2005 and ISO 22000:2018. Some of the main changes include new requirements to consider the context of the organization, risks and opportunities, and interested parties. There are revised clauses addressing leadership commitment, risk-based thinking, and enhanced documentation requirements. Organizations will need to adapt their food safety management systems to meet the new requirements of ISO 22000:2018 by the transition deadline of June 2021.