OPL vs. GML
What is the difference between the OMRI Products List and the OMRI Generic Materials List?
The OMRI Products List consists of individual products sold by suppliers that have undergone the OMRI review process and have been found to conform to the National Organic Program Standards. This list can be searched online, downloaded from our website and is also available as a printed publication.
The OMRI Generic Materials List is a list of generic materials describing whether and how each material complies with the National Organic Standards. The Generic Materials List is divided into three main sections: Crop, Livestock and Processing. Within these three sections, products are further separated into Use Classes:
Crop Fertilizer and Soil Amendments (CF)
Crop Management Tools and Product Aids (CT)
Crop Pest Weed and Disease Control (CP)
Livestock Feed Ingredients (LF)
Livestock Health Care (LH)
Livestock External Parasiticides and Pesticides (LP)
Livestock Management Tools and Production Aids (LT)
Processing Agricultural Ingredients and Processing Aids (PA)
Processing Non-agricultural Ingredient and Processing Aid (PN)
Processing Pest Controls (PP)
Processing Sanitizers and Cleaners (PS)
Processing Container s and Packaging Materials (PC)
Finally, within each Use Classes there are the Generic Material Categories. Products that are reviewed and listed on the OMRI Products List under a specific use Class and Generic Material Category.