broker
(7) The term “broker” means any person engaged in the business of negotiating sales and purchases of any perishable agricultural commodity in interstate or foreign commerce for or on behalf of the vendor or the purchaser, respectively, except that no person shall be deemed to be a “broker” if such person is an independent agent negotiating sales for and on behalf of the vendor and if the only sales of such commodities negotiated by such person are sales of frozen fruits and vegetables having an invoice value not in excess of $230,000 in any calendar year.