CFR > Title 7 - Agriculture > SUBTITLE B—Regulations of the Department of Agriculture > CHAPTER I—AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (parts 27 to 206) > SUBCHAPTER C—REGULATIONS AND STANDARDS UNDER THE AGRICULTURAL MARKETING ACT OF 1946 (parts 51 to 75) > PART 51—FRESH FRUITS, VEGETABLES AND OTHER PRODUCTS 1,2 (INSPECTION, CERTIFICATION, AND STANDARDS) > SUBPART —United States Standards for Grades of Onions (Other Than Bermuda-Granex-Grano and Creole Types) (§51.2830 to §51.2854) > 51.2836—Size classifications.

51.2836—Size classifications.

The size of onions may be specified in accordance with one of the following classifications.
Size designation Minimum diameter Maximum diameter
Inches Millimeters Inches Millimeters
Small 1 25.4 21/4 57.2
Repacker/Prepacker 1 13/4 44.5 3 76.2
Medium 2 50.8 31/4 82.6
Large or Jumbo 3 76.2 (2)
Code of Federal Regulations 492
Colossal 33/4 95.3 (2)
1 In addition to the sizes specified, a lot of onions designated as Repacker or Prepacker shall contain at least 60 percent or more 2 inches or larger in diameter.
2 No requirement.