QUALIFICATIONS OF BIDDERS. This invitation to bid is open to all manufacturers and dealers in member countries of However, the bidder may be the authorized representative of such manufacturer or dealer. In such case, his bid shall be accompanied by a certificate of authority authorizing him to submit the bid. To be qualified, bidders must professionally be in the business of selling the goods to be purchased in the said countries and must certify that they are without a special privilege of immunity with which to refuse being taken to court, or if they have such privilege or immunity certify that such privilege or immunity has been waived.