The document discusses the Common Technical Document (CTD) and electronic CTD (eCTD) formats for new drug applications. It provides an overview of the CTD/eCTD structure and implementation process. The CTD/eCTD aims to harmonize application formats across regions to increase efficiency. The document outlines the key components of CTD, eCTD specifications, benefits of electronic submission, and SFDA's plans to require CTD/eCTD formats and transition to a paperless system.