Official inspections of grains, oilseeds, and other agricultural and processed commodities are based on established official U.S. standards, Inspection services are divided into two basic types: "inspection for grade" or "factor analysis" without grade. Inspection for grade involves analyzing the sample according to the quality factors listed in the Official U.S. Standards for Grain and certifying the applicable numeric grade designation, the quality factors responsible for the grade assignment, and any other quality factors the customer requests.