ISO 20400 Responsible Sourcing (Sustainable Procurement) audits
Integrate sustainability into your procurement decisions and strengthen responsible sourcing and transparency throughout your supply chain.
ISO 20400 Responsible Sourcing (Sustainable Procurement) audits
ISO 20400 provides internationally recognised guidance on how organizations can embed sustainability considerations into procurement, helping them reduce supply chain risks, improve transparency, and support long-term responsible business practices.
The guideline enables organizations to move beyond cost driven purchasing by incorporating environmental, social, and governance (ESG) considerations into procurement choices, ensuring responsible outcomes across all stages of the supply chain.
What is ISO 20400?
ISO 20400 is a global guideline for sustainable procurement, applicable to organizations regardless of size or sector. It offers a structured approach for integrating sustainability into procurement strategies, processes, and governance frameworks.
The standard outlines:
- Key principles of sustainable procurement
- How to embed sustainability into procurement strategy and organizational culture
- Requirements for creating the right governance, competencies and resources
- Guidance for integrating sustainability criteria across procurement activities, from planning through supplier monitoring
Although ISO 20400 is not a certifiable management system standard, it provides a comprehensive framework that helps organizations operationalize responsible sourcing in line with broader corporate responsibility commitments.
ISO 20400 supports organizations by helping them:
- Identify ESG risks and opportunities in the supply chain
- Increase accountability and transparency in procurement decisions
- Strengthen supplier engagement and performance
- Align procurement with sustainability strategies and internationally recognised social responsibility principles such as ISO 26000
Value of ISO 20400 audits
Organizations that apply ISO 20400 gain:
- Strong risk management, including identification of environmental, social, financial, and ethical risks within the supply chain
- Greater transparency and accountability, improving stakeholder confidence
- More resilient and ethical supplier relationships, supported by structured monitoring and performance improvement
- Alignment with global expectations for responsible sourcing and supply chain sustainability
- Improved decision making, as procurement choices consider life cycle impacts and long term value creation rather than short term cost savings
Customers
Certificates
People trained annually
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How to get verified to ISO 20400
DNV supports organisations in understanding and applying ISO 20400 by assessing procurement practices, evaluating supply chain maturity, and offering targeted guidance to strengthen responsible sourcing performance. An independent assessment provides trusted proof that you are aligned with the ISO 20400 guidelines.
Learn how to get started
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- Obtain ISO 20400 to understand its sustainability principles, structure, and recommended practices.
- Review related social responsibility frameworks, such as ISO 26000, which shares common terminology and supports alignment.
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- Build a procurement strategy that aligns with corporate sustainability priorities.
- Identify competency needs within the procurement team and strengthen skills related to ESG risk assessment and supplier evaluation - areas emphasised by ISO 20400.
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- External experts may help you shape procurement strategies or conduct maturity assessments.
- Select digital tool and process platforms that support monitoring of supplier sustainability performance.
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- Map procurement processes and integrate sustainability considerations into requirements, tendering, supplier selection and performance monitoring.
- Establish clear responsibilities and documentation to support consistent, transparent decision making.
- Implement procedures that reflect your organisation’s sustainability objectives.
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- Choose a certification body such as DNV to evaluate how well your procurement system aligns with ISO 20400.
- A gap analysis helps identify strengths and areas needing improvement.
- Implement corrective actions and refine procurement governance, supplier criteria, and monitoring processes. DNV will issue a verification statement to conclude.
ISO 20400 - FAQ
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ISO 20400 – Sustainable Procturement – is an international guidance standard that helps organizations integrate sustainability into their procurement processes and decision‑making. It provides a framework for embedding environmental, social and governance considerations into purchasing activities across the entire supply chain.
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No. ISO 20400 provides guidance rather than certification requirements. Organisations can comply with it but cannot be formally certified by an independent third party. DNV can issue a statement that outlines compliance against the defined scope.
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Alignment to ISO 20400 helps organisations manage sustainability risks, strengthen supplier relationships, improve transparency, and support its ESG commitments.
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ISO 20400 is aligned with ISO 26000 – Social Responsibility. It uses its core principles of social responsibility as the foundation for sustainable procurement. While ISO 26000 provides broad guidance on responsible business conduct, ISO 20400 applies those principles specifically to procurement processes and supply chain decisions.
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