UKASE
| Date | Clue |
|---|---|
| 2017-12-03 | Edict |
| 2015-12-13 | Czar's decree |
| 2014-11-19 | Czar's edict |
| 2014-07-10 | Decree |
| 2010-12-26 | Decree |
| 2007-04-01 | Decree |
| 2005-11-27 | Imperial pronouncement |
| 2005-04-03 | Decree |
| 2005-01-29 | Decree |
| 2004-10-09 | Decree |
| 1998-08-02 | Decree |
| 1998-05-31 | Pronouncement |
| 1997-04-02 | Imperial decree |
| 1996-07-19 | Proclamation |
| 1995-11-23 | Edict |