| The current BUC Constitution was voted on 22 October 2021 See a pdf version of the current BUC Constitution 22 October 2021. If you would like to look at older BUC Constitutions just select from the list below. |
| BUC Constitution 1 July 2016 |
| BUC Constitution 3 July 2011 |
| BUC Constitution 9 December 2010 (Very slight change to Article 13 of the model Missions Constitution) |
| BUC Constitution 17 May 2009 |
| BUC Constitution 26 July 2006 |
| BUC Constitution 29 July 2001 |
| BUC Constitution 28 July 1996 |
| Note: The BUC was registered as a charity on 10 February 1995 |
| BUC Constitution 30 October 1994 |
| BUC Constitution July 1991 |
| BUC Constitution July 1986 |
| BUC Constitution August 1981 |
| BUC Constitution June 1976 |
| BUC Constitution March 1967 |
| BUC Constitution August 1954 |
| BUC Constitution 4 April 1950 |
| BUC Constitution 7 September 1948 |
| BUC Constitution 28 July 1948 |
| BUC Constitution August 1946 |
| BUC Constitution March 1932 |
| BUC Constitution 5 August 1928 |
| BUC Constitution 5 August 1924 |