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	Demeter International Global · Tier 2 Trusted	Non-GMO Project Verified United States · Tier 3 Specialty	Australian Certified Organic Australia · Tier 1 Gold	Tún (Iceland) Iceland · Tier 1 Gold
What it means	The certification mark for biodynamic agriculture. Stricter than any government organic standard: it covers the entire farm as a closed ecosystem, follows a planting calendar tied to lunar/solar cycles, and bans many practices the baseline organic rules permit.	North America's leading 'no genetically modified organisms' certification. Tests for the presence of GMOs in finished products. NOT organic.	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.	Vottunarstofan Tún is Iceland's only accredited organic certifier. Accredited by MAST (Matvælastofnun) under the EU 2018/848-equivalent Icelandic standard, so a Tún-certified product is also recognised as EU-organic.
Scope	Several categories	Food	Food	Food
Established	1928	2010	2002	1994
Inspection	Annual on-site by Demeter-accredited inspectors	Annual third-party audit + lab testing	Annual on-site, ACOS-accredited	Annual on-site, MAST-accredited
Residue testing	Risk-based on top of organic	GMO testing only (not pesticide)	Risk-based	Required for at-risk operations
Guarantees	All organic standards PLUS biodynamic preparations and whole-farm planning. Whole-farm certification (not single fields/products). Annual on-site inspection by Demeter-accredited inspectors. Animal welfare standards stricter than baseline organic.	Verified absence of GMO ingredients (with action thresholds, not zero tolerance). Annual third-party verification. Tracing and segregation across the supply chain.	≥95% organic ingredients. No synthetic pesticides, no GMOs. Annual on-site inspection. Animal welfare and biodynamic-compatible production options.	≥95% organic ingredients per EU rules. No synthetic pesticides, no GMOs. Annual on-site inspection. Animal welfare standards (outdoor / pasture access, geothermally-warmed greenhouse compatibility for vegetables).
Does NOT	Biodynamic philosophy includes esoteric elements (lunar planting, herbal preparations) that many scientists view as non-evidence-based — the agronomic outcomes are still good, the underlying claims about cosmic forces are not testable.	Doesn't mean organic — Non-GMO products can use synthetic pesticides and fertilizers freely.	Australia has no single mandatory organic mark — ACO is the dominant one, but NASAA, OFC, and others also certify.	There aren't many Tún-certified operations (~120–160) — coverage in the Icelandic market is narrower than in the EU mainland.

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