If you have been sourcing apparel for any length of time, you will have encountered a string of certification acronyms — SEDEX, BSCI, GOTS, GRS, OCS, BCI, Higg. Understanding what each one actually covers, who issues it and what it protects you from is essential for making good sourcing decisions.

This guide explains each certification in plain language — without the jargon.

SEDEX and SMETA: The Ethical Trade Audit

SEDEX (Supplier Ethical Data Exchange) is a non-profit membership organisation that operates the world's most widely used ethical supply chain platform. SEDEX does not issue certifications directly — instead, it operates a shared audit platform where audit results are uploaded and accessible by multiple buyers simultaneously.

The audit conducted through SEDEX is called SMETA — Sedex Members Ethical Trade Audit. A SMETA 4-Pillar audit covers:

Why it matters to you: if you source from a SEDEX-registered supplier, you can access their audit report directly through the SEDEX platform. This means no expensive separate audit commissioning — you simply verify the existing audit. Required by the majority of UK, US and major European retail buyers as part of their supplier onboarding process.

BSCI / amfori: European Social Compliance

The Business Social Compliance Initiative (BSCI), managed by the trade organisation amfori, is the leading social compliance audit standard for European trade. It covers similar ground to SEDEX/SMETA but is particularly prevalent among European retailers and brands.

BSCI covers labour rights, fair wages, working conditions, health and safety, environmental management and ethical business practices. The BSCI Code of Conduct is aligned with ILO (International Labour Organisation) conventions and UN Guiding Principles on Business and Human Rights.

Why it matters to you: if you are selling into European markets or working with European retail buyers, BSCI certification from your supplier is typically required. It also directly addresses UK Modern Slavery Act due diligence requirements.

GOTS: Global Organic Textile Standard

GOTS is the world's leading processing standard for organic textiles — covering the full supply chain from raw organic fibre to finished garment. This is what makes GOTS different from simpler organic claims: it is not just about the cotton being organically grown — it covers the entire production process.

GOTS requires:

Why it matters to you: without GOTS certification from your manufacturer, any "organic cotton" claim on your product is legally unverified. Under UK and EU green claims regulations, unverified environmental claims expose your brand to regulatory action and reputational damage.

GRS: Global Recycled Standard

The Global Recycled Standard, managed by Textile Exchange, verifies the presence of recycled materials in a product and covers the full chain of custody from recycled raw material to finished garment. GRS also sets environmental and social requirements at each production stage — it is not just a material tracking standard.

GRS is the certification required when your brand uses the word "recycled" in product marketing. Without GRS, a claim like "made with recycled polyester" is unverified and legally exposed.

OCS and RCS: Organic and Recycled Content Standards

The Organic Content Standard (OCS) and Recycled Claim Standard (RCS) are lighter-weight versions of GOTS and GRS respectively — they verify the traceability of organic or recycled content through the supply chain, without the additional environmental and social requirements of GOTS and GRS.

OCS is used for blended fabrics where not all content is organic. RCS is used for blended recycled content. Both are Textile Exchange standards and are credible verifications of organic or recycled content claims.

BCI Better Cotton

Better Cotton is the world's largest cotton sustainability programme, operating in 22 countries and covering 2.5+ million farmers. BCI membership demonstrates commitment to more sustainable cotton farming — reducing water use, improving soil health and supporting farmer livelihoods.

BCI is different from GOTS and OCS in that it is a farm-level programme rather than a textile processing certification. It does not certify specific products but demonstrates that the cotton used in production was sourced from the Better Cotton programme.

Higg Index: Measuring Environmental Performance

The Higg Index, developed by the Sustainable Apparel Coalition, is not a certification — it is a measurement framework. The Higg Facility Environmental Module (FEM) assesses energy consumption, water usage, waste generation and chemical management — producing a quantified performance score.

For buyers, Higg data is useful for comparing environmental performance between suppliers and for incorporating supply chain environmental data into your own ESG and CSRD reporting. A manufacturer with a verified Higg FEM score provides your sustainability team with actual performance data rather than policy statements.

How to Verify Certifications

Always check that certifications are current — expiry dates matter. An expired certification provides no compliance assurance.