1 Players may Interchange at any time. 
17.2 There is no limit to the number of times a player may Interchange.
17.3 Interchange players must remain in their Interchange Area for the duration of 
the match.
17.4 Interchanges may only occur after the player leaving the Field of Play has 
entered the Interchange Area. 
17.5 Players leaving or entering the Field of Play shall not