ISO 20400 · Sustainable procurement guidance
ISO 20400 sustainable procurement consulting for supply decisions you can defend.
ISO 20400 is international guidance on building sustainability into how your organisation sources goods and services; Sterling's expert and experienced consultants turn it into a working procurement policy, supplier process and evidence trail. We help our clients put it into practice and prove it.
- Fixed scope, one proposal: consulting, Effivity software, Sterling Academy access and internal auditor training, as applicable to your standard, in one proposal
- A team of expert and experienced consultants, with management system consulting across sectors and countries since 2003
- The Sterling Promise: 100% on-time completion, 100% success, 8,100+ client engagements. ISO 20400 is guidance and carries no certificate; Sterling does not certify
8,100+ client engagements in 60+ countries.
Sterling client experience
What it is
What is ISO 20400 sustainable procurement guidance?
ISO 20400, Sustainable procurement — Guidance, is published by ISO. In ISO's words it gives guidance to organisations, independent of their activity or size, on integrating sustainability within procurement, as described in ISO 26000. It speaks to everyone engaged in or affected by procurement processes and decisions, from the board that sets policy to the buyer who signs the order.
In practice it helps you decide which purchases carry the biggest environmental, social and economic impacts, write those priorities into policy and sourcing, and check that suppliers deliver on them. Because it is guidance, it describes good practice rather than auditable requirements.
Current edition. ISO 20400:2017, edition 1, published in April 2017. ISO reviewed it and confirmed it in 2023, and no newer version is shown as under development. ISO lists it as guidance, so no certification body can certify to it.
Who it is for
Who asks for ISO 20400?
Requests usually come from people who have to explain where and how the organisation spends its money:
- Large customers and public buyers. Tender questionnaires increasingly ask how you manage sustainability in your own supply chain, not only in your operations.
- Boards and sustainability teams. Supply chain impacts often outweigh direct ones, and reporting frameworks ask how they are managed.
- Procurement leaders. A recognised international reference gives the policy weight with budget holders and suppliers.
The value lies in better purchasing decisions and the evidence behind them, not in a certificate, because none exists.
Requirements
What does ISO 20400 cover?
ISO 20400 is guidance, so it contains recommendations rather than certifiable requirements. We have not listed its clause titles here; the lines below describe what Sterling's work against the guidance covers.
- Policy and commitment: a sustainable procurement policy agreed by leadership and linked to ISO 26000 principles
- Priorities: spend categories ranked by sustainability risk and opportunity
- Sourcing process: sustainability criteria built into specifications, tenders and contract terms
- Suppliers: evaluation, engagement and follow-up of the suppliers that matter most
- Measurement: indicators, reviews and reporting on what the policy achieves
What does useful sustainable procurement evidence look like?
A signed policy, a category risk map, tender documents with weighted sustainability criteria, supplier assessments and action plans, and a periodic review with decisions recorded. We keep this in Effivity so a customer, auditor or board can follow a purchase from policy to supplier.
Your engagement
What your ISO 20400 engagement includes
Your engagement brings procurement, sustainability and finance together around one practical approach, under one all-inclusive proposal.
Gap review and plan
Current purchasing practice measured against the guidance, with priorities and owners.
Policy and procedures
Sustainable procurement policy, sourcing steps and contract clauses tailored to your categories.
Effivity ISO & GRC software
Supplier registers, assessments and actions in one workspace, included with the engagement at no additional cost.
Training for everyone
Awareness for budget holders and buyers, and preferential Sterling Academy access, including complimentary awareness training for your people as part of the engagement.
Supplier evaluation
A method to assess and follow up key suppliers, trialled on real contracts.
Review and reporting
Indicators and a management review that show the policy working.
ISO 20400 is guidance and has no certificate. Where you need an audited certificate, Sterling can align the work with a certifiable standard such as ISO 14001 or ISO 9001.
Often combined with
Standards organisations pair with ISO 20400
- AEOAuthorised Economic Operator (AEO) readiness: what customs examines, who can apply and how Sterling prepares your controls and evidence for the customs visit.
- BRCGS Storage and Distribution · Agents and BrokersBRCGS Storage and Distribution certification and Agents and Brokers: Issue 4 and Issue 3 requirements, scopes, audits and cost factors, with Sterling's support.
- C-TPATC-TPAT requirements and validation readiness for US importers and overseas suppliers: the Minimum Security Criteria, CBP's process and how Sterling helps.
- CBAMCBAM compliance and requirements explained: authorised declarant status, the 50-tonne threshold, verified embedded emissions and how Sterling helps you prepare.
- EcoVadisEcoVadis rating consulting: evidence on environment, labour and human rights, ethics and sustainable procurement, prepared for the assessment EcoVadis runs.
- EU Deforestation Regulation (EUDR)EUDR compliance and requirements for cattle, cocoa, coffee, palm oil, rubber, soya and wood: due diligence, risk assessment and the 30 December 2026 date.
Effivity · ISO and GRC software, included in every engagement
How Effivity helps you fulfil, automate and simplify sustainable procurement to ISO 20400.
Every Sterling ISO 20400 engagement includes Effivity, the ISO and GRC automation platform built by the Sterling group and used in 50+ countries. Your consultant configures the workspace within the agreed scope, so the procurement policy, category risks, supplier assessments, contract criteria, actions and reviews live in one place, the system runs in daily work and a customer or auditor reviews a live system rather than a binder. Sterling consulting clients get their Effivity subscription included with the engagement, at no additional cost.
Scope, products and interested parties
The scope of the policy, the spend categories and the interested parties are kept in one register and reviewed on a schedule, so priorities stay current as purchasing changes.
Policy, roles and objectives
The policy, the responsibilities and the objectives with their measures, owners and dates live where the people who own them work; progress is reported from the system, not from a separate spreadsheet.
Risks and opportunities
A risk and opportunity register with owners, actions and review dates; treatments tracked to closure and brought to management review automatically.
Competence, awareness and documented information
Training and competence records for every person, linked to Sterling Academy; documents with versions, approvals and distribution, so the current version is the only one in use.
Supplier evaluation and sustainable sourcing
Supplier questionnaires, scores, site visits and improvement actions, each linked to the contract and category it concerns, with a record created as the work is done.
Monitoring, internal audit and management review
Audit programmes, findings and follow-up; KPIs on live dashboards; a management review that records its inputs, decisions and actions.
Nonconformity, complaints and corrective action
Raised, investigated and closed with root cause and the evidence that the action worked; recurring issues visible to management before they become a finding.
Your own processes, forms and reports
Forms, fields, workflows and reports adapted to how you work, without code; legal and customer requirements tracked to the processes they affect.
What this means when a customer asks
A tender or customer questionnaire asks how you manage supply chain sustainability. In Effivity the policy, the category priorities, the supplier assessments and the follow-up actions are each a screen, with dates and owners, so the answer is evidence rather than a statement. Sustain™ keeps the reviews running in the same workspace.
In your engagement
- Subscription included with the engagement, at no additional cost
- Configured by your Sterling consultant within the agreed scope
- Your documents, records and registers migrated, not retyped
- Admin and user training for your team
- Modules for QMS, EMS, OHSMS, ISMS, FSMS and more when you integrate other standards
Sterling Academy · ISO 20400 e-learning
Train every employee on ISO 20400, not just the procurement team.
Sterling Academy delivers e-learning for the whole workforce and for the people who run the system: video lessons with practice checkpoints, a final exam and a numbered Certificate of Completion for each learner, verifiable online. Sterling consulting clients benefit from preferential Sterling Academy course access and special pricing through their Sterling consultant, including complimentary awareness training for their people as part of the engagement.
- Sustainable procurement awareness for buyers and budget holders
- Practitioner learning for the people who assess and manage suppliers
- Internal auditor training for the people who will audit the system, as applicable to your standard, as part of the engagement
- Learner progress by department and a training status report for management review
- New hires trained as they arrive, so evidence stays current
- A Sterling consultant reachable when a learner needs one
Keep exploring
Explore more about ISO 20400
Why Sterling
Want sustainable procurement that stands up to questions? Come to Sterling.
Whether you purchase for one site or for a group across countries, Sterling helps you set shared purchasing priorities with clear local ownership, so the policy fits how each business actually sources.
Management systems in 60+ countries since 2003
Procurement, supplier and management system work for organisations across every region we serve, with one engagement team accountable across every country you operate in.
All-inclusive proposal
Consulting, Effivity, training and Academy access in one proposal. No surprises, ever.
A system your people can use
Less documentation and maximum effectiveness: documents, training and software connected to day-to-day operations, so your people adopt the system rather than tolerate it.
Expert and experienced consultants
Consultants who have built supplier management and sustainability processes across sectors and countries since 2003, and who make the guidance practical for your buyers.
The Sterling Promise
What the Sterling Promise means for your ISO 20400 programme
We stay with you until your agreed ISO 20400 outcome is achieved, supporting the policy, the supplier process and the first review cycle. Clear explanations, practical delivery, included software and employee learning turn the investment into lasting capability.
The engagement identifies the scope, outcome and responsibilities. Your organisation supplies accurate information and puts the agreed controls into use. ISO 20400 is guidance and carries no certificate; our commitment concerns the agreed support, not a promise of every future tender award.
FAQs
Frequently asked questions about ISO 20400
Can you get ISO 20400 certified?
No. ISO lists ISO 20400 as guidance, so there is no certification to it. Organisations show alignment through their policy, processes and evidence, and some pair it with a certifiable standard such as ISO 14001.
How is ISO 20400 related to ISO 26000?
ISO 20400 applies the social responsibility principles described in ISO 26000 to procurement. ISO 26000 is also guidance; ISO 20400 narrows its focus to how you choose and manage suppliers.
Is ISO 20400 only for large organisations?
No. ISO states it applies to organisations independent of their activity or size. A small business can apply it to its few significant purchases with a short policy and a simple supplier check.
Keep exploring
More on ISO 20400 and related standards
More in Supply chain, logistics & customs
Talk to a consultant
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