Oregon Tilth Certified Organic (OTCO) Follow
A leading non-profit certifying agency, educator and organic agriculture and products advocate, Oregon Tilth has helped lead the way on making organic agriculture a research-based approach to sustainable food production. Founded in 1974, Oregon Tilth, along with CCOF and others, played a role in the development of the USDA’s National Organic Program (NOP) and helped found the Organic Materials Research Institute (OMRI).
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