StacksVerified U.S. regulatory reference

7 CFR §51.2559

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
  1. (a)The size of pistachio kernels may be specified in connection with the grade in accordance with one of the following size classifications.
    1. (1)Jumbo Whole Kernels: 80 percent or more by weight shall be whole kernels and not more than 5 percent of the total sample shall pass through a 24/64 inch round hole screen with not more than 1 percent passing through a 16/64 inch round hole screen.
    2. (2)Large Whole Kernels: 80 percent or more, by weight, shall be whole kernels and not more than 2 percent of the total sample shall pass through a 16/64 inch round hole screen.
    3. (3)Large Split Kernels: 75 percent or more, by weight, shall be half kernels split lengthwise and not more than 5 percent of the total sample shall pass through a 16/64 inch round hole screen.
    4. (4)Whole and Broken Kernels: means a mixture of any combination of whole kernels or pieces. The percentage of whole kernels and/or pieces may be specified. Not more than 5 percent of the total sample shall pass through a 5/64 inch round hole screen.
  2. (b)[Reserved]