Product segregation codes and product codes are numeric codes created and used by the Canadian Grain Commission and grain industry stakeholders.
Product segregation code – 4–digit numeric or alphanumeric code indicating the product's grade
Product code – 2–digit numeric code indicating grain type and country of origin
If Canadian grain had been blended with imported grain, the grain is coded as CIO (Canadian and imported origin) product. In this case, the segregation code indicates the pair of origin countries of the blended grain.