This study analyzed Request For Proposal(RFP) by selecting four centers in Korea and the United States conducting contracting-out. In many advanced countries, including the United States, contracting-out is increasing, and this trend is expected to continue. Assuming that the same increase is expected in Korea, a more sophisticated RFP for contracting-out will be needed. In this respect, a comparison of the RFP between the two countries is necessary and the implications are as follows. First, it should make full use of the consignee's experience. Second, it should accurately describe the situation and tasks of the consignor. Third, it must review the evaluation standards of consignment costs. Fourth, it is necessary to clarify in advance the timing of assessment, evaluation items, and follow-up measures. Fifth, adequate attention should be paid to smooth transitioning with existing operating systems. Sixth, the contract period needs to be reviewed. Seventh, a proposal for a role as a public center is needed.