The Model UBL Letter Agreement provides a template for contracts between trading partners who wish to treat particular UBL electronic documents as equivalent to their paper counterparts. The Model does not itself constitute a contract and should not be used without legal review, but together with the Commentary it provides a starting point for lawyers and a checklist for discussion with their clients. The UBL TC thanks the Cyberspace Law Committee of the American Bar Association for its help in creating this document and Professor Jane Winn of the University of Washington for her assistance in organizing the project.