The director by regulation may do all of the following:

1. (a) Prescribe methods of selecting samples of lots or containers of fruits, nuts, and vegetables on a basis of size or other specific classification, which are reasonably calculated to produce by such sampling fair representations of the entire lots or containers which are sampled.
2. (b) Establish and issue official color charts which depict the color standards and requirements which are established in this division.
3. (c) Make such other regulations as are reasonably necessary to secure uniformity in the enforcement of this division.