HagaMUN will always use the most updated set of  the THIMUN Rules of Procedure. Many different conferences, especially those outside of Europe, use a different set of Rules of Procedure than the HagaMUN does. In case you or your students are not familiar with the THIMUN Rules of Procedure, make sure to thoroughly read and understand them. You can find the THIMUN Rules of Procedure here, or take a look at the official THIMUN website.