USDA GRADING & AMERICAN-STYLE WAGYU
In America, the USDA divides the higher-quality meats into three categories: Select, Choice and Prime (the top tier). Compared to the Wagyu and/or Kobe marbling scale, the best Prime steak would roughly equal to a BMS 3-4.
Due to an outbreak of foot-and-mouth disease around the mid-2000s, all Japanese beef importation was suspended, giving way to a new wave of domestic production of Wagyu beef. Although there are some American producers of full-blood Wagyu breeds, most of American Wagyu beef comes of a cross between Japanese Wagyu breeds and other classic breeds like Angus. Domestic or American Wagyu follows the Japanese BMS scale for grading meat.