To advance knowledge sharing, documentation, and promotion of best practices for long-term sustainability and interoperability of digital architecture, design and engineering (ADE) assets for design and the built environment, the Library of Congress, the National Gallery of Art and the Architect of the Capitol hosted a day-long symposium offering thematic discussions on these challenging topics. With contributions from various stakeholders in the ADE communities, including content creators and the caretakers, topics included the development and implementation of open standardized file formats; case study discussions on current projects and practices, and creation of viable project deliverable specifications for new-build ADE assets. The goals of the symposium included community building, identifying common issues and challenges, and information sharing. (Afternoon Session) For transcript and more information, visit www.loc.gov/today/cyberlc/feature_wdesc.php?rec=8279