Since transportation and preparation for transportation are both exempt activities, an employee who engages in both is performing exempt work. In referring to “the transportation and preparation for transportation” of the fruits or vegetables, the statute recognizes the two activities as interrelated parts of the single task of moving the commodities from the farm to the designated points. Accordingly, the word “and” between the words “transportation” and “preparation” is not considered to require that any employee be employed in both parts of the task in order to be exempt. The exemption may apply to an employee engaged either in transporting or preparing the commodities for transportation if he otherwise qualifies under section 13(b)(16).