The Federation of International Lacrosse publishes the official Indoor Lacrosse Rulebook. The first edition was published in 2015 and is based on the National Lacrosse League rulebook. There are some variations between the two rule sets. The Canadian Lacrosse Association publishes its own rules for box lacrosse, which provide a third variation of the rules. For fields without boards, US Lacrosse offers a small-sided, small-size field variation of field lacrosse rules.
A typical indoor lacrosse field is 200 feet long by 85 feet wide, the same size as a hockey rink or arena soccer field. The goals are 4'9" wide and 4' tall; the goal line is 12 feet from the ends of the field. Dasher boards are between 3'6" and 4' tall with safety glass on top.