# CCT The Common Code Tables are published to the [Manual on Codes, Volume I.2](https://library.wmo.int/index.php?lvl=notice_display&id=10684#.X18yfpMza3I) (WMO-No. 306) in Part C – Common Features to Binary and Alphanumeric Codes. The CSV files are the working documents and the XML files are generated automatically after a push or pull_request.