What is the difference between HACCP and ISO 22000?
Food safety is critically important, as it directly affects consumer health and, in turn, economic performance. According to the World Health Organization (WHO), around one in ten people worldwide fall ill each year after consuming contaminated food, resulting in approximately 420,000 deaths annually.
In the 1960s, the United Nations’ Food and Agriculture Organization (FAO) and the WHO jointly established the Codex Alimentarius Commission to develop internationally recognised food safety standards. These principles later formed the foundation for widely adopted food safety management approaches, including HACCP and ISO 22000, which support organisations in building structured, risk based systems to ensure safe food production across the supply chain.
What is HACCP?
HACCP (Hazard Analysis and Critical Control Points) is a systematic, preventive approach to food safety that focuses on identifying and controlling biological, chemical and physical hazards before they occur, rather than relying on finished product inspection. It has been widely adopted by food and beverage businesses worldwide as a core methodology for managing food safety risks.
Food safety requirements are addressed through national regulations as well as a wide range of international food safety standards developed by scheme owners such as ISO, SQFI, FSSC, BRCGS and IFS. Certification to GFSI‑benchmarked standards used across the global food supply chain, as well as standards such as ISO 22000, is built on the principles of HACCP. HACCP is also embedded in legislation and endorsed by leading international regulatory bodies, including the European Commission.
What is ISO 22000?
ISO 22000 is a Food Safety Management System (FSMS) standard developed by the International Organization for Standardization (ISO). It provides a structured framework for organisations to consistently manage and improve food safety across the entire supply chain.
The standard integrates the principles of HACCP with management system elements, enabling organisations to identify hazards, implement effective controls and continually improve their food safety performance. ISO 22000 is also compatible with other ISO management system standards, such as ISO 9001 quality management, making it suitable for integrated management systems. In addition, ISO 22000 forms the basis of the Food Safety System Certification scheme, FSSC 22000.
Differences between HACCP and ISO 22000: a comparison
When comparing HACCP and ISO 22000, it is important to understand their distinct roles and how each addresses different aspects of food safety management. While both aim to ensure safe food, they differ in scope, structure and application across the food and beverage industry.
Scope and application
HACCP focuses primarily on the identification, evaluation and control of significant food safety hazards throughout food and feed production and handling. In contrast, ISO 22000 is a comprehensive Food Safety Management System (FSMS) applicable to all organisations within the food chain, including feed producers, food manufacturers, transport and storage providers, and retail and food service operations. While ISO 22000 incorporates the HACCP principles, it extends beyond hazard control to include broader management system requirements.
Prerequisite Programs (PRPs)
HACCP recognises the importance of Prerequisite Programmes (PRPs), such as Good Hygiene Practices (GHPs), as outlined in the Codex Alimentarius. ISO 22000 places greater emphasis on PRPs, defining them as essential conditions and activities required to maintain a hygienic environment throughout the food chain. These PRPs support the production, handling and provision of safe food suitable for human consumption.
Integration with other management systems
ISO 22000 is designed to align with other ISO management system standards, making it easier for organisations to integrate food safety with quality, environmental or occupational health and safety management systems. Although HACCP principles can be incorporated into integrated systems, HACCP itself is not specifically designed for management system integration.
Continuous improvement
ISO 22000 follows the Plan-Do-Check-Act cycle, promoting continual improvement of the entire food safety management system. HACCP also encourages improvement, but this is limited to the review and control of hazards and critical control points rather than the broader organisational system.
Certification
ISO 22000 is a certifiable international standard, allowing organisations to demonstrate compliance through third‑party audits conducted by accredited certification bodies such as DNV. While HACCP certification does exist, it is far less common, as certification to a recognised food safety management system standard is generally preferred within the global food supply chain.
Flexibility and adaptability
ISO 22000 offers a flexible framework that can be adapted to organisations of all sizes and levels of complexity. HACCP is also adaptable; however, it is more prescriptive, requiring strict adherence to its defined principles and steps.
Communication
ISO 22000 includes structured requirements for the communication of relevant food safety information both internally and with external stakeholders. While HACCP acknowledges the importance of communication, it does not provide a formalised or systematic approach comparable to ISO 22000.
Documentation and record keeping
ISO 22000 requires more extensive documentation to ensure that all components of the food safety management system are properly recorded, maintained and reviewed. HACCP documentation is more limited in scope and focuses mainly on the development, implementation and monitoring of the HACCP plan.
In summary, both HACCP and ISO 22000 play a crucial role in ensuring food safety. HACCP principles form the foundation of ISO 22000 and many other food safety standards, meaning the choice is not an “either‑or” decision. Instead, HACCP serves as a core element within a broader food safety management system. Ultimately, both approaches share the same goal: safeguarding consumers and ensuring safe food throughout the global supply chain.
