About this standard
ISO 20400 provides guidance on integrating sustainability into procurement processes, helping organizations make responsible purchasing decisions.
Benefits of certification
- Reduced supply chain sustainability risk
- Cost savings through efficient procurement
- Stronger supplier relationships and compliance
- Alignment with ESG and sustainability goals
Key requirements
- Sustainable procurement policy and strategy
- Supplier evaluation and risk assessment
- Procurement process integration
- Performance monitoring and reporting
Audit flow you'll go through
Every step is planned, executed, technically reviewed, and decided independently, in line with ISO/IEC 17021-1:2015.
- 1
Application & Quotation
Submit your application and scope; we review it and issue a certification quotation.
- 2
Stage 1 Audit
Document review and readiness assessment to confirm your management system is ready for Stage 2.
- 3
Stage 2 Audit
On-site audit evaluating implementation and effectiveness of your management system against the standard.
- 4
Technical Review & Decision
Findings are independently reviewed and a certification decision is made by a qualified committee.
- 5
Certificate Issued
Your certificate is issued and registered, valid for a 3-year cycle.
- 6
Surveillance Audit 1 & 2
Annual surveillance audits confirm continued conformity and improvement.
- 7
Recertification
A full audit before expiry renews your certificate for another 3-year cycle.
Ready to start your certification journey?
Apply online and our team will guide you through every step — from quotation to certificate issuance, fully aligned with ISO/IEC 17021-1.
Request ISO 20400 certification
Submit your details and our team will start your application per ISO/IEC 17021-1.