國際比賽規則修正案按照下列年度會員代表大會修訂（Amended by following annual membership congress）
Drogheda, Rep of Ireland on 11 April 1992
London, England on 24 April 1993
Rochester, USA on 18 April 1998
Mogelsberg, Switzerland on 6 May 2000
Pretoria, South Africa on 28 April 2001
Assen, Netherlands on 27 April 2002
Rochester, USA on 3 May 2003
Cento, Italy on 21 April 2004
Capelown South Africa on 7 May 2005
Pretoria, South Africa on 30 April 2009
London England on 2 May 2010
Appenzell Switzerland on 7 May 2011
Belfast N. lreland on 12 April 2014
Cape Town South Africa on 24 Mar 2017
Cork Ireland on 28 April 2018