ART. 1 . . . A jump ball is a method of putting the ball into play to start the game and each extra period by tossing it up between two opponents in the center restraining circle, or as in 7-3 before the alternating-possession procedure has been established.
ART. 2 . . . The jump ball begins when the ball leaves the official’s hand(s) and ends when the touched ball contacts a non-jumper, an official, the floor, a basket or backboard.