The Official Rules of Ultimate - applicable from 2013.
Additional Rules for Championship Events
A two page summary of the Rules of Ultimate – perfect for beginners
Interpretations to help determine the correct way to apply the rules and resolve issues on the field
Hand signals to communicate to other players, game officials, substitutes, team staff or spectators, what call has been made by the players
Decision tree diagrams outlining how to resume play after the Pull, Infractions, and Fouls
Diagrams that provide a visual representation of specific scenarios in Ultimate
A descripton of the differences between USA Ultimate Rules and WFDF Rules