OTCOOregon Tilth Certified Organic (agriculture)
OTCOOperator Training Committee of Ohio (wastewater utility training)
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OTCO is an internationally recognized symbol of organic integrity that verifies strict production standards with on-site inspections and legally binding contracts to protect the producers and buyers of organic products.
The company says the products received the OTCO designation after meeting U.
org), and OTCO, Oregon Tilth Certified Organic (www.