No person shall be selected or continue to serve as a member or alternate to represent one of the groups specified in § 984.35(a)(1) through (6) or § 984.38(b)(1) through (6), unless he or she is engaged in the business he or she is to represent, or represents, either in his or her own behalf or as an officer or employee if the business unit engaged in such business. Also, each member or alternate member representing growers in District 1 or District 2 shall be a grower, or officer or employee of the group he or she is to represent.