| Abbreviation | Definition |
|---|---|
| NWIC | National Wheat Improvement Committee |
| NWT | New With Tag |
| OAAS | Ontario Association of Agricultural Societies |
| OABS | Optimal Agricultural Business Systems |
| OACC | Oklahoma Agriculture Cooperative Council |
| OACC | Ontario Agricultural Commodity Council |
| OACC | Organic Agriculture Centre of Canada |
| OACP | Ohio Agricultural Clearance Program |
| OAE | Office of Agricultural Economics |
| OAEF | Oregon Agricultural Education Foundation |
| OAHP | Oregon Agricultural Heritage Program |
| OAIN | Oregon Agricultural Information Network |
| OAIN | Organic Agriculture Innovation Network |
| OALP | Oklahoma Agricultural Leadership Program |
| OAMP | Oklahoma Agriculture Mediation Program |
| OARA | Oklahoma Agribusiness Retailers Association |
| OASI | Organic Agriculture Support Initiative |
| OBHECC | Ontario Broiler Hatching Egg Chick Commission |
| OBHECC | Ontario Broiler Hatching Egg & Chick Commission |
| OCA | Ontario Cattlemen's Association |