The 2008-09 NBA season brings expanded use of instant replay
by NBA referees.
Now that you're up to speed on the changes, time to refresh yourself on the old ones. Sure, you know your twos from threes, a blocked shot from a personal foul, but how well do you really know the NBA rules? For example, do you know that instant replay can be used at any point during a game to determine whether a field goal was correctly scored as a two- or three-point field goal? You can now by checking out the league's official rules as well as those most often misunderstood. Use the links below to navigate the NBA's 2007-08 rule book and case book, which contains questions and answers to the rules.