7 CFR §51.3198
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Size shall be specified in connection with the grade in terms of minimum diameter, range in diameter, minimum diameter with a percentage of a certain size or larger, or in accordance with one of the size classifications listed below: Provided, that unless otherwise specified, onions shall not be less than 1 1/2 inches in diameter, with 60 percent or more 2 inches or larger in diameter.