premise: c. Upon termination of this Agreement, Receiving Party will, within two (2) weeks of written request from Disclosing Party, return all documents concerning the Proprietary Information and NREL Protected Information and all copies of any such documents to Disclosing Party, or certify in writing their destruction, with the exception of copies of Proprietary Information and NREL Protected Information made as a matter of routine information technology or legal backup, provided that such copies will continue to be subject to the confidentiality obligations set forth in this Agreement and may only be used in resolving a dispute between the Parties regarding this Agreement.