7 CFR § 51.3196
U.S. Combination
July 6, 2020
U.S. Combination consists of a combination of U.S. No. 1 and U.S. No. 2 onions: Provided, That at least 50 percent, by weight, of the onions in each lot meet the requirements of U.S. No. 1 grade. (See §§51.3198 and 51.3199.)