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OTC
OEKO-TEX Organic Cotton
Global · Tier 2 Trusted
Rainforest Alliance logo
Rainforest Alliance
Global · Tier 3 Specialty
NASAA Certified Organic (Australia) logo
NASAA Certified Organic (Australia)
Australia · Tier 2 Trusted
What it meansLaunched 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.Sustainable-agriculture certification (post-2020 merged standard with UTZ). Covers environmental, social, and economic criteria. NOT an organic mark.National Association for Sustainable Agriculture, Australia. One of seven Australian Department of Agriculture-approved certifiers. IFOAM-accredited; certifies organic and biodynamic produce.
ScopeTextilesFoodSeveral categories
Established202319871986
InspectionAnnual on-site by OEKO-TEX-accredited institute (Hohenstein et al.)Annual third-party audit (RA-accredited)Annual on-site, NASAA-accredited
Residue testingRequired (Standard 100 panel + GMO/pesticide screening)Risk-basedRisk-based
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.
  • Reduced (not eliminated) synthetic pesticide use, with bans on the most hazardous classes.
  • Forest conservation requirements (no deforestation after the cut-off date).
  • Worker welfare and community development requirements.
  • Annual third-party audit.
  • Compliance with the Australian National Standard for Organic and Bio-Dynamic Produce.
  • Annual on-site inspection.
  • Biodynamic certification option.
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).
  • Allows synthetic pesticides — does NOT meet any organic standard. Often confused with organic but it's a different programme.
  • Australia has multiple competing organic certifiers — NASAA is one of seven, not the dominant national mark (that's ACO).

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