The commission or the director in preparing a list of producers to be used under this chapter, may omit from such list any person who makes only casual sales or sales as a result of activities other than a commercial farm business venture. Any person so omitted from such list shall not be subjected to the provisions, including the payment of any assessments, of this chapter and shall not be qualified as a producer under this chapter.
Any person omitted from a list pursuant to this section may be included on any subsequent list if found qualified as a producer at the time of preparing such list.