The purpose of organic certification is to ensure that the agreed upon conventions of organic agricultural systems are being practiced not only by growers, but also by all the people who handle and process organic food, feed and fiber on its journey to the consumer.

As an accredited certifier, Oregon Tilth certifies to the USDA National Organic Program (NOP) standards. The NOP provides a system that combines strict production standards, on-site inspections, and legally binding contracts to protect the producers and buyers of organic products.