Bluesign for Manufacturers: What the Assessment Covers

bluesign is a Switzerland-based system for the textile industry that focuses on chemical management, resource efficiency and worker and environmental safety. Unlike GOTS, which certifies an organic fibre chain, or OEKO-TEX Standard 100, which tests finished articles for harmful substances, bluesign works through the companies in the supply chain. They join as System Partners and are assessed against the bluesign criteria. This article is a practitioner explainer based on bluesign's public information, not a bluesign assessor's product, and the bluesign criteria and your assessor decide what applies to you.

Who Can Be a bluesign System Partner?

bluesign describes three groups of System Partners: brands and retailers, manufacturers and converters, and chemical suppliers. In July 2025 bluesign reported more than 900 System Partners worldwide. A mill, dye house or finishing plant joins as a manufacturer. Brands can also be System Partners, so it is not true that the system applies only to factories.

What Is Input Stream Management?

For manufacturers, bluesign's own term for its core approach is input stream management. It assesses raw material and chemical inputs, so that they can be traced and handled safely, and aims to prevent pollution at the source instead of relying only on testing outputs. You may see consultants and mills describe this as a "stream map". That is an informal label, so use bluesign's own documentation as the reference when you prepare.

In practice, an assessor will want to see that you know what chemicals and materials enter each process, in what quantities, that you can trace them to suppliers, and that what is on the shelves and in your records matches what you say you use. A facility that keeps this information current between assessments is in a much stronger position than one that builds it only for the visit.

What the Manufacturer Assessment Covers

bluesign's public criteria describe the manufacturer assessment as covering management systems (quality, environment, health and safety, and legal compliance), resource consumption (water and energy, and your reduction strategy), environmental impact (wastewater, air emissions and solid waste), and occupational health and safety (risk controls and emergency preparedness). Assessments take place on site. bluesign says its assessors visit System Partners at least every three years, and partners also submit annual reporting.

The bluesign Finder and Chemical Products

The bluesign Finder is a database of chemical products that meet the bluesign criteria, called bluepass Chemical Products. Chemical suppliers apply to have their products assessed. A manufacturer sourcing from the Finder starts from products that have already been screened for hazards and compliance with restricted substance lists, which reduces the work of assessing each chemical individually. It does not replace your own input management, because the assessment still looks at how you purchase, store, use and record chemicals.

A practical risk is reformulation. If a supplier changes a product, the listing may no longer match what you are buying. Before each reorder, confirm that the product and version you receive are still listed, and ask your supplier to tell you in writing about any change. Older documents and some buyers still use terms such as BLUEFINDER or the bluesign APPROVED mark, so ask each buyer which wording and evidence it expects.

Resource Use: What to Be Ready to Show

The assessment looks at your water and energy consumption and your strategy to reduce it. I could not find published benchmark values in bluesign's public criteria, so check bluesign's current system documentation, or ask your assessor, for any thresholds that apply to your processes. What you can do now is measure well. Water use varies a lot between substrates and processes, so total site water alone makes it hard to explain performance. Metering water and energy at process or machine level, and calculating litres of water and kWh per kg of fabric by process, gives you data you can use whatever the assessment asks.

How bluesign Relates to GOTS, OEKO-TEX and Brand RSLs

These schemes do different jobs and are often confused. OEKO-TEX Standard 100 is a product certificate based on testing finished articles. GOTS certifies the organic fibre chain and its processing. bluesign assesses companies and their management of chemical inputs, resources and safety. They can coexist, and each has its own requirements, so meeting one does not mean you meet another. Do not assume the chemical lists of two schemes overlap.

bluesign does not replace a brand's restricted substance list (RSL) testing. Many brands ask for both System Partner status and test reports. Ask each buyer what it requires.

Preparing for a bluesign manufacturer assessment

• Compile a chemical inventory: every product used in production, with supplier, monthly consumption and the process step where it is used. Check whether each product is on the bluesign Finder.
• Map each chemical and raw material input to the process step where it is used, and keep records that let you trace it to the supplier. Check that stock and consumption records match.
• Meter water and energy at process or machine level where you can, and calculate litres of water and kWh per kg of fabric by process type.
• Check with each chemical supplier that the products you buy have not been reformulated and are still listed in the version you receive.
• Collect your wastewater, air emission and waste records for the past 12 months.
• Gather your management system documents: environment, health and safety, quality and legal compliance, including your register of applicable legal requirements and emergency preparedness records.
• Ask bluesign or your assessor for the current criteria documents and the date of your next assessment.

References

bluesign technologies ag: FAQ and Criteria pages (bluesign.com, accessed 8 October 2026), and the announcement on 25 years of bluesign (15 July 2025). Check bluesign's current documentation for criteria, labels and assessment rules.

Frequently Asked Questions