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	OTC OEKO-TEX Organic Cotton Global · Tier 2 Trusted	Australian Certified Organic Australia · Tier 1 Gold	Global Organic Textile Standard Global · Tier 2 Trusted	Luomu (Finland) Finland · Tier 2 Trusted
What it means	Launched April 2023 by the OEKO-TEX Association. A separate certificate from Standard 100 that combines the Standard 100 chemical-residue test with verified organic-cotton supply chain — addressing the long-standing confusion that Standard 100 alone is NOT an organic mark.	Australia's largest organic certifier, accredited under the Australian National Standard for Organic and Bio-Dynamic Produce. The bud-and-leaf logo is the most-seen organic mark in Australian supermarkets.	The strictest, most widely-recognised standard for organic textiles. Covers the full supply chain from organic fibre to finished garment, with environmental AND social criteria.	Finland's national organic 'Sun Mark' (Aurinkomerkki). Operated by the Finnish Food Authority. In practice most Finnish organic packaging carries both Luomu and the EU Leaf — they certify to the same baseline.
Scope	Textiles	Food	Textiles	Food
Established	2023	2002	2002	1995
Inspection	Annual on-site by OEKO-TEX-accredited institute (Hohenstein et al.)	Annual on-site, ACOS-accredited	Annual on-site, IOAS-accredited	Annual on-site by Finnish Food Authority
Residue testing	Required (Standard 100 panel + GMO/pesticide screening)	Risk-based	Required for finished products	Required
Guarantees	Two grades: 'Organic Cotton' (100% certified-organic cotton) and 'Organic Cotton Blended' (≥70% certified-organic cotton). Full Standard 100 chemical residue test on the finished product. Additional GMO test + pesticide residue test specific to organic farming. Verified chain of custody from farm to finished product. Annual re-certification with independent OEKO-TEX institute audits.	≥95% organic ingredients. No synthetic pesticides, no GMOs. Annual on-site inspection. Animal welfare and biodynamic-compatible production options.	≥70% certified-organic natural fibre (the 'organic' grade requires ≥95%). Restricted dyes, no chlorine bleach, no formaldehyde, no banned heavy metals. Wastewater treatment requirements. Social standards based on ILO core conventions (no child labour, no forced labour, fair wages, safe workplace). Annual on-site inspection by IOAS-accredited certifier.	EU baseline organic (Finnish supply chains end-to-end). Annual on-site inspection by the Finnish Food Authority.
Does NOT	Doesn't certify the social/labour conditions across the supply chain in the way GOTS does (use OEKO-TEX STeP for that, or pair with GOTS). Cotton-only — doesn't apply to other organic fibres (wool, hemp, linen).	Australia has no single mandatory organic mark — ACO is the dominant one, but NASAA, OFC, and others also certify.	Doesn't cover non-textile components (zips, buttons, prints) beyond the chemical-restriction list.	The Sun Mark is awarded only to fully Finnish supply chains — imports use the EU Leaf alone.

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