The Preservation and Disposal of Official Documents in the Tang Dynasty

Preservation and disposal of official documents were one of the important parts of document administration in Tang dynasty. Previous studies have mainly focused on document storage, but I emphasize the importance of systematic processing due to spatial, administrative, and security constraints.The Tang government consumed enormous quantities of paper through highly bureaucratized administration, supported by state supply, local production, and tribute. Central and local offices maintained document repositories and followed legal regulations distinguishing between documents for long-term retention(常留changliu) and those to be periodically discarded (揀除jianchu), typically every three years. Important records such as imperial edicts, household registers, legal cases, and personnel files were preserved for extended periods, sometimes on specially treated yellow paper to prevent decay. Expired documents were removed, recycled, or repurposed. Tang dynasty government also had detailed legal regulations to punishing misuse, loss, or theft of official paper and records.Overall, preservation and disposal of official documents formed the final, legally regulated stages of Tang document administration, reflecting the empire’s sophisticated bureaucratic governance.