A violation that occurs when a player with the ball walks, runs or takes too many steps without dribbling. A player is allowed two steps after picking up the dribble, and after two steps, the player must keep an established pivot foot to the floor. Also, when a player dives for a loose ball on the floor and gains possession, a player can't roll over or attempt to stand. The player that commits the violation is charged with a turnover.
The NBA had to clarify its traveling rules for the 2009-10 season, updating in its rule book that "a player who receives the ball while he is progressing or upon completion of a dribble, may take two steps in coming to a stop, passing, or shooting the ball." Prior to 2009, it wasn't officially stated that players were allowed to take two steps, but they were getting away with it anyway.