USDA Grading and Labeling for Meat, Poultry, and Eggs

USDA grading and labeling programs establish standardized quality classifications for meat, poultry, and eggs sold in the United States, giving buyers at every level of the supply chain — from federal procurement offices to retail consumers — a consistent vocabulary for product quality. Grading is administered by the USDA Agricultural Marketing Service (AMS) and is distinct from mandatory food safety inspection, which falls under the USDA Food Safety and Inspection Service (FSIS). Understanding how these two systems interact, what each shield and grade mark signifies, and where voluntary and mandatory requirements diverge is essential for producers, processors, retailers, and food service operators navigating federal compliance.

Definition and scope

USDA grading is a voluntary, fee-for-service program administered by the Agricultural Marketing Service (AMS) under the Agricultural Marketing Act of 1946. Producers and processors request grading services and pay for a USDA grader to evaluate their products against published grade standards. If products meet the criteria for a given grade, they may bear the corresponding USDA grade shield on packaging.

Mandatory inspection, by contrast, is required by law for all meat and poultry sold in interstate commerce under the Federal Meat Inspection Act (21 U.S.C. §§ 601–695) and the Poultry Products Inspection Act (21 U.S.C. §§ 451–472). Inspection certifies that a product is wholesome and free of adulteration; it does not address palatability or quality. A product can carry an inspection mark without any grade designation.

Scope of graded commodities:

• Beef — graded under 7 C.F.R. Part 54 using standards maintained by AMS
• Lamb and veal — graded under separate AMS schedules with parallel quality and yield tier structures
• Poultry — graded under 7 C.F.R. Part 56 for chickens, turkeys, ducks, geese, and guineas
• Shell eggs — graded under 7 C.F.R. Part 56 and the AMS Egg Grading Manual

Egg labeling also intersects with USDA's mandatory grading requirement for eggs sold under federal purchase programs, meaning grading that is technically voluntary in the private market becomes effectively required in federal institutional channels.

The /index of this site provides a broader orientation to the USDA's statutory mandates across all program areas.

How it works

Beef grading: quality vs. yield

Beef receives two distinct grades that address different buyer needs:

1. Quality grade — reflects palatability factors including marbling (intramuscular fat), maturity of the carcass, and texture. The eight USDA quality grades from highest to lowest are: Prime, Choice, Select, Standard, Commercial, Utility, Cutter, and Canner. Retail and food service sectors primarily handle Prime, Choice, and Select.
2. Yield grade — numbered 1 through 5, with Yield Grade 1 indicating the highest proportion of boneless, closely trimmed retail cuts from the round, loin, rib, and chuck. Yield Grade 5 represents the lowest cutability. Yield grading is required when quality grading is requested on beef carcasses (7 C.F.R. § 54.10).

Poultry grading

Poultry grading uses a three-tier structure: Grade A, Grade B, and Grade C. Grade A birds must be free of deformities, have well-developed flesh, be free of disjointed or broken bones, have clean and well-distributed surface fat, and be free of pinfeathers, bruises, and discolorations meeting AMS tolerances. Grade B and Grade C designations allow progressively greater defects and are primarily used in processed or institutional food applications rather than whole-bird retail sales.

Egg grading

Shell eggs are graded by interior quality (evaluated by candling — passing light through the egg to assess air cell depth, yolk condition, and albumen clarity) and exterior quality (shell shape and cleanliness). The three consumer grades are:

• Grade AA — very firm whites, upstanding yolk, clean unbroken shell, air cell depth not exceeding 1/8 inch (AMS Egg Grading Manual, USDA AMS)
• Grade A — reasonably firm whites, air cell depth not exceeding 3/16 inch
• Grade B — weaker whites, wider air cell, may have slight shell stains; used primarily in liquid, frozen, or dried egg products

Common scenarios

Federal procurement: The USDA Agricultural Marketing Service grades product for federal agencies — including the military commissary system and school nutrition programs such as the National School Lunch Program — where specifications typically require Grade A poultry or USDA Choice or higher beef.

Retail labeling: A supermarket steak carrying the "USDA Choice" shield has been evaluated by a federal grader against AMS standards. The same steak also carries a round inspection legend (the "EST." number identifying the slaughter or processing establishment) required by FSIS under mandatory inspection rules.

Institutional food service: Operators purchasing ground beef for volume cooking frequently specify Yield Grade 1 or 2 carcasses to maximize trim efficiency, while quality grade is secondary.

Export certification: Export shipments of beef and poultry often require USDA grading or certification letters as a condition of entry into importing countries, making AMS grading a practical prerequisite even when it remains technically voluntary under domestic law.

Decision boundaries

Understanding when grading applies versus when inspection applies prevents the common conflation of the two systems:

A product cannot carry a USDA grade shield unless it has also passed mandatory inspection — the grading step follows inspection. However, passing inspection does not entitle a product to any grade designation; that requires a separate fee-based request to AMS.

For egg products (liquid, frozen, dried) processed from shell eggs, oversight shifts to FSIS under the Egg Products Inspection Act (21 U.S.C. §§ 1031–1056), and AMS shell-egg grading standards no longer govern the processed product's classification.

Producers and processors seeking detailed compliance guidance should consult the USDA grading and labeling program pages maintained by AMS, as well as the parallel inspection framework described under USDA meat and poultry inspection.