Danielle Tan
Chief Operating Officer
Learn how ISO 22002-100 establishes a unified PRP framework for food, feed, and packaging supply chains to strengthen hygiene controls and food safety management systems.
Food safety management systems (FSMS) rely on a strong operational foundation. While standards such as ISO 22000 define the management system requirements for food safety, organizations also need detailed operational controls that prevent hazards before they reach critical control points. This is where Prerequisite Programmes (PRPs) play a crucial role.
With the publication of ISO 22002-100, ISO introduced a new common PRP framework for the food, feed, and packaging supply chain. The goal is to provide a unified approach to prerequisite programmes across multiple sectors, improving consistency, operational efficiency, and food safety performance.
ISO 22002-100 is commonly implemented alongside ISO 22000 food safety management systems and certification schemes such as FSSC 22000, where prerequisite programmes form the operational foundation supporting HACCP.
Why ISO Introduced ISO 22002-100
Historically, different sectors in the food industry relied on separate technical specifications for prerequisite programmes. For example, ISO 22002-1 addressed PRPs for food manufacturing, while ISO 22002-4 focused on food packaging manufacturing. Although these standards were widely used, they contained many similar requirements that were repeated across different sector-specific documents.
ISO recognized that modern food supply chains are increasingly complex and interconnected. Many organizations operate across multiple sectors, for example, producing food ingredients, manufacturing food products, and managing packaging operations within the same company or facility. Maintaining separate PRP structures for each sector often led to duplication, confusion, and inconsistent implementation.
To address this challenge, ISO created ISO 22002-100, which consolidates common prerequisite programme requirements that apply across the food, feed, and packaging supply chain. This new standard provides a unified baseline for hygienic operations while allowing sector-specific standards to add additional controls where necessary.
A Unified Foundation for Food Safety
ISO 22002-100 establishes the common operational conditions required to maintain a hygienic environment throughout the food supply chain. These prerequisite programmes help organizations control hazards that may arise from facilities, equipment, utilities, personnel, and operational practices.
The standard covers several critical operational areas, including:
• Construction and layout of food facilities
• Hygienic design of buildings and workspaces
• Utilities management, including water, air, and compressed gases
• Pest control programmes and monitoring systems
• Waste management and recycling controls
• Equipment suitability, cleaning, and maintenance
• Personnel hygiene and employee facilities
• Storage, transportation, and material handling
• Food defence and food fraud prevention
These operational controls support the effectiveness of hazard analysis and critical control points (HACCP) by reducing the likelihood of hazards occurring in the first place. In practice, strong PRPs significantly reduce reliance on critical control points and strengthen the overall FSMS.
How ISO 22002-100 Works with Other ISO 22002 Standards
ISO 22002-100 is not intended to replace sector-specific PRP standards. Instead, it acts as a common foundation that works alongside other parts of the ISO 22002 series.
For example:
• ISO 22002-1 provides additional prerequisite programme requirements specific to food manufacturing operations, such as cross-contamination prevention and allergen control.
• ISO 22002-4 introduces controls relevant to food packaging manufacturing, including risks related to chemical migration, packaging materials, and contamination.
In this structure, ISO 22002-100 establishes the core PRP requirements, while sector-specific standards add additional controls tailored to specific industries.
This layered approach improves clarity and simplifies implementation, especially for organizations involved in multiple parts of the food supply chain.
Benefits for Organizations Implementing FSMS
The introduction of ISO 22002-100 offers several important advantages for companies implementing ISO 22000, FSSC 22000, or other food safety management systems.
1. Consistency Across Supply Chains
A common PRP framework helps align food manufacturers, ingredient suppliers, packaging producers, and logistics providers under the same operational expectations.
2. Simplified Implementation
Organizations operating across different sectors can now implement one unified set of prerequisite programmes rather than maintaining separate systems for each sector.
3. Improved Hazard Prevention
By strengthening basic operational controls such as facility hygiene, utilities management, and contamination prevention, ISO 22002-100 helps organizations prevent hazards before they escalate into food safety incidents.
4. Stronger Audit Readiness
Clear and standardized PRP requirements make it easier for organizations to demonstrate compliance during food safety audits and certification assessments.
Top 3 Practical Questions About ISO 22002-100
Organisations implementing food safety management systems often ask how the new ISO 22002-100 framework affects their prerequisite programmes and operational controls.
1. How does ISO 22002-100 affect existing ISO 22000 or FSSC 22000 systems?
ISO 22002-100 introduces a common baseline for prerequisite programmes across the food supply chain. Organisations certified to ISO 22000 or FSSC 22000 may need to review existing PRPs to ensure they align with the updated structure and operational expectations.
2. Do organisations need to replace ISO 22002-1 or other sector standards?
No. ISO 22002-100 does not replace sector-specific PRP standards such as ISO 22002-1 for food manufacturing or ISO 22002-4 for packaging manufacturing. Instead, it provides a common foundation while sector standards add additional controls relevant to specific operations.
3. What operational areas are typically reviewed during an ISO 22002-100 gap assessment?
Gap assessments typically review facility design, utilities management, pest control programmes, sanitation practices, personnel hygiene, material handling, and contamination prevention measures to verify that prerequisite programmes support effective HACCP implementation.
Strengthening Food Safety from the Ground Up
Food safety failures often occur not because of weaknesses in HACCP plans, but because fundamental operational controls are poorly implemented. Weak sanitation programs, poor facility design, inadequate pest control, or poorly managed utilities can quickly compromise product safety. ISO 22002-100 addresses this challenge by reinforcing the foundational hygiene and operational conditions necessary for effective food safety management.
When implemented together with ISO 22000 and sector-specific standards such as ISO 22002-1 or ISO 22002-4, the new framework provides organizations with a comprehensive and scalable approach to managing food safety risks across the entire supply chain.
As food supply chains continue to grow more global and interconnected, a unified prerequisite programme framework like ISO 22002-100 will play an increasingly important role in ensuring safe, reliable, and trustworthy food systems worldwide.
Improve Food Safety Foundations with ISO 22002-100
A strong food safety management system begins with well-implemented prerequisite programmes. ISO 22002-100 helps organisations establish consistent hygiene and operational controls across the food supply chain, supporting more effective hazard prevention and audit readiness.
How Nexus Consultancy Supports Organisations
• ISO 22002 PRP Implementation Advisory
Support organisations in strengthening prerequisite programmes and aligning operational controls with ISO 22002 and ISO 22000 requirements.
• Food Safety & PRP Awareness Training
Provide practical training to help food safety teams understand PRP expectations, operational hygiene controls, and their role in HACCP effectiveness.
• PRP Gap Assessment & Improvement Advisory
Assess existing prerequisite programmes, identify gaps against ISO 22002 requirements, and recommend practical improvements to strengthen food safety systems.
For further enquiries or tailored support, please contact our team.
Discuss Your ISO 22002-100 or Food Safety PRP Implementation Challenges
If your organisation is preparing for ISO 22000 certification, FSSC 22000 transition, or PRP system improvement, our team can help you evaluate your current practices and identify practical improvement areas.
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