The following are some of the US Lacrosse rules changes for the upcoming 2007 season. These rules, along with a few other rules dealing with procedural issues, will be in effect for the season and will be covered in depth for coaches and umpires at pre-season clinics and meetings. The completely revamped US Lacrosse Official Rules for Girls and Women’s Lacrosse rule book will be available for purchase after November 1, 2006.