What Is a Sedex 4-Pillar Audit?

Three terms people use interchangeably

Sedex, short for Sedex Information Exchange, is a membership organisation that runs a platform for supply chain sustainability data. Members use it to hold site information, risk assessments and audit reports, and to share those reports with the customers who need to see them.

SMETA, the Sedex Members Ethical Trade Audit, is the audit methodology Sedex publishes. It is one of the most widely used social audit formats in the world, and it is carried out at a site by an approved auditor company, not by Sedex itself and not by the buyer.

So a supplier who says they are Sedex members is telling you they are on the platform. A supplier who says they have had a SMETA audit is telling you an assessment took place. Those are different statements, and only the second one comes with findings you can read.

The four pillars

• Labour Standards: recruitment and freedom of employment, child labour, wages and benefits, working hours, discrimination, regular employment, harsh or inhumane treatment, and freedom of association
• Health and Safety: safe and hygienic working conditions, including the physical state of the site, plus a basic environmental assessment
• Environment (additional pillar): a fuller assessment covering areas such as chemical handling, air emissions, energy use, water use, waste and effluent management
• Business Ethics (additional pillar): policy and awareness, management systems and compliance, grievance mechanisms, and land rights where relevant

What makes it a 4-Pillar audit

Labour Standards and Health and Safety are the two mandatory pillars. Every SMETA audit includes them, and an audit covering only those two is described as a 2-Pillar audit. Adding Environment and Business Ethics makes it a 4-Pillar audit.

The practical difference is scope, cost and time on site. A 2-Pillar audit answers the worker-facing questions. A 4-Pillar audit adds how the site manages its environmental impact and how it conducts itself as a business, including whether workers have a route to raise a concern and whether anyone acts on it. Buyers with environmental reporting obligations or anti-bribery policies of their own tend to specify 4-Pillar for that reason.

If you have asked for a 4-Pillar audit and been sent a report, check the cover: the pillars in scope are stated. It is entirely possible to receive a 2-Pillar report in answer to a 4-Pillar request.

What the audit is measured against

SMETA assesses a site against local law and against the ETI Base Code, the labour standards code published by the Ethical Trading Initiative and built on internationally recognised conventions. Where the two differ, the standard offering greater protection to the worker is the one applied. That is a useful principle to understand, because it explains why a site can be entirely lawful in its own country and still record a non-compliance.

The methodology is revised periodically, and audits are carried out against the version current at the time. When comparing two reports from different years, check which measurement criteria each was run under before drawing conclusions from the difference.

What the audit produces

The output is a report plus a Corrective Action Plan Report, usually abbreviated to CAPR. The CAPR summarises what the auditor found, and against each finding it records the agreed corrective and preventative action, who owns it, the timescale and how completion will be verified. It also carries the auditor's assessment of the site's management systems.

Findings are described as non-compliances rather than failures, and they are graded by severity. Closing them out is the substance of the process. A report with open findings and evidence of steady closure often tells you more about a site than a report with nothing recorded at all, because a completely clean report can equally mean a shallow audit.

Reports are uploaded to the Sedex platform, where the site controls which customers can see them. This is the piece that saves everyone money: one audit, shared with many buyers, instead of the same site being audited repeatedly to near-identical criteria.

It is an audit, not a certification

SMETA does not issue a pass or fail, and there is no SMETA certificate. This is deliberate. The methodology is built around transparency and continuous improvement, so what you receive is a picture of a site at a point in time, together with the plan for what happens next.

That means the phrase SMETA certified is not correct, however often it appears in supplier marketing. A site can be SMETA audited, and a report can be current or out of date, but nobody is SMETA certified. Being precise here protects you: a buyer who repeats a supplier's loose wording in their own materials owns that claim.

How often audits are repeated

Audit frequency is generally driven by risk. Higher-risk sites are typically audited more frequently, lower-risk sites less often, and the interval is ultimately a matter for the buyer and the site to agree. Sedex publishes guidance on risk-based scheduling, and many buyers write their own expectation into their supplier manual.

What matters in practice is the date on the report in front of you and whether the corrective actions from it have been closed. An audit from several years ago with an open action list is not a reassuring document, whatever it says on the front page.

What this means when you are sourcing

Audit status is specific to a site and to a point in time, and it belongs to the site that was audited rather than to a group or a brand name. Nothing in this article should be read as a statement about the audit status of any particular company, including Simsotex. Where a SMETA report matters to your programme, ask the supplier to share the current report for the specific site through the Sedex platform, and read the corrective action plan rather than just the cover page.

It is also worth checking that the audited site is the one doing your work. Large suppliers operate multiple units, and a report covering one facility does not describe another. If decoration, trims and assembly happen in different places, the question applies to each of them.