Oregon Tilth is a leading certifier, educator and advocate for organic agriculture and products since 1974

The Oregon Tilth Certified Organic (OTCO) program continues our work toward a better food system, learn more about the certification process here.

Oregon Tilth is a leading certifier, educator and advocate for organic agriculture and products since 1974.

An Oregon Tilth certification provides access to marketing support, from our well-known logos of assurance and credibility to tools for direct market connection with consumers. We provide …

Discover the benefits of the MyOTCO experience - your comprehensive organic certification management system. Access your organic certificate, view your organic system plan (OSP), …

For the most up-to-date list of Oregon Tilth Certified Organic (OTCO) producers, please use the National Organic Program’s Organic INTEGRITY Database (OID). The Organic INTEGRITY …

If you have any questions about membership, please call us at (503) 378-0690 or send us an email at [email protected]. Interested in joining Oregon Tilth? Become a member.

# Crop All required forms and documents for maintaining your organic crop certification, including common updates or changes to your OSP. Read More

OTCO provides organic certification services for operations that produce crops and livestock, or handle organic products. Each broad category features established classes of certification to …

When Oregon Tilth started out, sustainable agriculture and organic weren’t familiar buzzwords. Over five decades later, our core initiatives of certification, education, and advocacy continue …