NBA Rules: Article 72 and 73

Study Notes

Sanction for violating rules under this section: loss of possession, with the ball awarded to the other team for a throw-in.

Occurs when a team with possession in the frontcourt returns the ball to the backcourt while maintaining possession.
Four conditions must exist for a backcourt violation:
- Team has possession of the ball in their frontcourt.
- A player on that team is the last to touch the ball before it enters the backcourt.
- The ball enters the backcourt.
- A player on that team is the first to touch the ball after it enters the backcourt.

A player cannot cause the ball to go out-of-bounds.
Ball is out-of-bounds when it touches a person or object out-of-bounds.
The last player to touch the ball before it goes out-of-bounds is charged with the violation, except when a referee judges that another player intentionally caused the ball to go out-of-bounds.

A team with possession in their backcourt has 12 seconds to cause the ball to enter the frontcourt.
Failure to do so is a violation.
The 12-second count begins when a player on the court takes possession of the ball in their backcourt.
The count stops if a player from the opposing team takes possession of the ball.

It is a violation for a player to deliberately strike the ball with their foot or leg below the knee.

A player with possession of the ball cannot leave the court on the try line and return to the court without scoring a try.
Three conditions must exist for this violation:
- The player must have possession of the ball before crossing the try line.
- One wheel of the player's wheelchair must touch the out-of-bounds area across the opposing team's try line.
- That wheel must return to the in-bounds area or break contact with the out-of-bounds area before the player scores a try.