It is the purpose of this chapter to promote the orderly marketing of farm products and the establishment of reasonable charges for unloading such products at markets in this state. It is declared that in some of the markets of this state the charges for unloading farm products have been found to be exorbitant and unreasonable and that this chapter is enacted to remedy such evils and in the interests of the public welfare.

The director may make such regulations as he may deem necessary to carry out this chapter and to effectuate its purposes.

This chapter does not apply to any market in which less than five produce dealers operate.

This chapter does not apply to any produce dealer at whose place of business every farm product which is delivered is unloaded without charge by employees of the produce dealer either with or without the assistance of the operator of the vehicle which transports such product or other persons who accompany the operator on such vehicle. This chapter does not prohibit any employee of a produce dealer from assisting in unloading any farm product.