Cal. Code Regs. tit. 3, § 1658.6
The number of boxes selected for inspection shall be according to the following table:
Lots or loads having:
2 to 50 boxes,
sample 2 boxes
51 to 100 boxes,
sample 3 boxes
101 to 250 boxes,
sample 4 boxes
251 to 400 boxes,
sample 5 boxes
401 to 600 boxes,
sample 6 boxes
601 and over,
sample 7 boxes
Not less than 10 percent by volume of the grapes shall be taken, at random, from each of the boxes selected.
Note: Authority cited: Sections 407 and 41194, Food and Agricultural Code. Reference: Sections 41191 and 41192, Food and Agricultural Code.