The USDA Organic seal is regulated by the U.S. Department of Agriculture's National Organic Program. To carry it, a product must be made of at least 95% certified organic ingredients, grown without synthetic pesticides, synthetic fertilizers, sewage sludge, irradiation, or genetic engineering.
"100% Organic" indicates every ingredient meets the standard. "Made With Organic" indicates at least 70% organic content but cannot use the seal.
Certification covers the whole supply chain — farms, processors, and handlers are inspected annually by accredited third-party agents. The standard does not directly measure carbon footprint or labor practices.