While US Lacrosse oversees all aspects of the men's and women's national teams program, the Federation of International Lacrosse (FIL) coordinates and sanctions all official world championship events.
The FIL was established in August of 2008 in a merger of the International Federation of Women’s Lacrosse Association (IFWLA) and the men's International Lacrosse Federation (ILF). The organization was accepted into SportAccord, the umbrella organization for all Olympic, non-Olympic, and international sports federations, in 2012.
Specifically, events under the FIL's jurisdiction are: the Men's World Lacrosse Championship, World Indoor Lacrosse Championship, Women's Lacrosse World Cup, and both the Men's and Women's Under-19 World Lacrosse Championships. Each of these events are held every four years.
Other key areas of responsibility of the Federation are the establishment of international rules of play and the promotion and development of all forms of lacrosse internationally.