Cancellations to the UDC
In the process of the annual UDC revision, many classes are cancelled and relocated. These changes are published in the Extensions and Corrections to the UDC, the official UDC Consortium publication. Cancelled classes are removed from the subsequent version of the UDC Master Reference File. On this page you can download the list of annual cancellations and relocations as a text file.
See also the list of major changes to the UDC since 1993 and the UDC subject coverage statistics.
| Cancellation file - year | Published in | Containing cancellations in the classes |
|---|---|---|
| 2011 | E&C 33 | Place, Time, Properties, Relations, 2, 3, 33, 52, 54, 55, 56, 57, 58, 59, 60, 62 |
| 2010 | E&C 32 | Form, Place, Properties, Relations, 2, 3, 32, 34, 35, 52, 53, 56, 59, 62, 63, 65, 66, 68, 7, 78, 81, 82, 94 |
| 2009 | E&C 31 | Language, Place, Time, Peoples, 2, 31, 32, 33, 36, 37, 52, 53, 54, 56, 57, 58, 59, 61, 62, 63, 81, 82 |
| 2008 | E&C 30 | Language, Place, 005, 355, 64, 65, 7, 81, 82 |
| 2007 | E&C 29 | Place, Form, 02, 2, 33, 34, 37, 64 |
| 2006 | E&C 28 | Place, 316, 51, 53 |
| 2005 | E&C 27 | Place, 33, 62, 64, 68, 94 |
| 2004 | E&C 26 | Place, 004, 355, 37, 54, 620, 621, 681, 94 |
| 2003 | E&C 25 | Place, Ethnic, Time, -02, 06, 2, 32, 34, 53, 629, 65, 66, 67, 68, 72, 78, 94 |
| 2002 | E&C 24 | Form, Place, Persons, 00, 06, 16, 17, 2, 31, 37, 39, 65, 81 |
| 2001 | E&C 23 | Language, Place, Ethnic, Point of View, 001, 17, 34, 37, 54, 61, 68 |
| 2000 | E&C 22 | Place, 005, 008, 2, 34, 35, 36, 37, 39, 53, 54, 56, 57, 58, 59, 63, 64, 65, 66, 68, 7, 9 |
| 1999 | E&C 21 | Form, Place, Point of View, 33, 35, 502, 504, 55, 57, 65, 7, 93 |
| 1998 | E&C 20 | Place, Time, Persons, 004, 159, 17, 2, 303, 314, 316, 32, 33, 34, 35, 37, 39, 54, 57, 62, 63, 65 |
| 1997 | E&C 19 | Language, Place, 2, 52, 55, 56, 58, 59, 61, 62, 67, 81, 9 |
| 1996 | E&C 18 | Language, 38, 51, 53, 56, 68, 7, 9 |
| 1995 | E&C 17 | Place, 17, 34, 38, 529, 62, 59 |
| 1994 | E&C 16 | Place, 82, 9 |
Some of the older text files are structured and tagged in order to help publishing and editing, if this is the case, the interpretation of these tags is as follows:
| Tag | Content |
|---|---|
| <01> | UDC-number |
| <02> | Description |
| <03> | Replacing notation [if any] |
