United States Standards for Grades of Carcass Beef
The U.S. Department of Agriculture's (USDA) Agricultural Marketing Service (AMS) is seeking public comments concerning revisions to the United States Standards for Grades of Carcass Beef. This request for comments stems from an American Wagyu Association petition, which requested that AMS consider adding marbling degrees to the USDA Prime grade for beef to better characterize modern genetics, which are not always differentiated within the current marbling degrees. AMS is also soliciting public comment on whether to eliminate the skeletal maturity requirement for carcasses determined by dentition to be under 30 months of age. Scientific research and data on beef tenderness suggest that the skeletal maturity requirement could be eliminated.
What this item does
The short version, using the agency's own summary text.
The U.S. Department of Agriculture's (USDA) Agricultural Marketing Service (AMS) is seeking public comments concerning revisions to the United States Standards for Grades of Carcass Beef. This request for comments stems from an American Wagyu Association petition, which requested that AMS consider adding marbling degrees to the USDA Prime grade for beef to better characterize modern genetics, which are not always differentiated within the current marbling degrees. AMS is also soliciting public comment on whether to eliminate the skeletal maturity requirement for carcasses determined by dentition to be under 30 months of age. Scientific research and data on beef tenderness suggest that the skeletal maturity requirement could be eliminated.
Notice; request for comments.
Important dates
The dates that matter most for this item.
Published
July 8, 2026
Comment deadline
September 8, 2026