CA Food & Agric Code Section 7571

Except as otherwise provided in Section 7572, it is unlawful for any person to move any seed screenings or cleanings from crop seed from the place where they may be unless one of the following first has been done:

(a)

The seed screenings or cleanings have been inspected by the commissioner and found to be free from the seed of any pest.

(b)

The seed screenings or cleanings have been processed under the supervision of, and to the satisfaction of, the commissioner by grinding, or otherwise, to render the seed of any pest incapable of reproduction.