What is an OMRI Category?
An OMRI Category, or Listing, is a general category of materials used in organic crop production, food processing, and livestock production. Examples include “potting soil,” “fish meal” and “salt”. The specific categories used by OMRI are published as the OMRI Generic Materials List, which is searchable online, or in the OMRI Canada Standards Manual for review to Canadian Organic Standards. Products are listed in the OMRI Products List according to their category. When applying for a product to be listed by OMRI, choose the one material listing that best fits your product. Categories are a useful way for buyers to find a specific type of product.