The Under Secretary, in coordination with the Interagency Committee, shall—

((1)) maintain a Federal information clearinghouse on marine debris that will be available to researchers and other interested persons to improve marine debris source identification, data sharing, and monitoring efforts through collaborative research and open sharing of data; and

((2)) take the necessary steps to ensure the confidentiality of such information (especially proprietary information), for any information required by the Under Secretary to be submitted under this section.