USDA Agricultural Marketing Service (AMS)
USDA Wheat Standards
The official USDA grading system for wheat sold in US trade.
View official standardAbout this standard
The United States Standards for Wheat, maintained by the USDA Agricultural Marketing Service (7 CFR §§ 810.2201-810.2205), define the grade factors used to inspect and classify wheat in US trade — including test weight, damaged kernels, foreign material, and shrunken/broken kernels. Vibe imaging workflows measure the same kernel morphology and defect parameters these grades depend on.