What is the proper call for a player who steps on the boundary line while in possession of the ball?

When a player is in possession of the ball and steps on the boundary line, the correct call is out of bounds. This is because, under NFHS (National Federation of State High School Associations) basketball rules, a player is considered out of bounds if they touch the boundary line or anything beyond it while holding the ball. The boundary line is part of the out-of-bounds area, so any contact with it indicates that the player has lost their right to be on the court with possession of the ball. As a result, the opposing team will be awarded possession for a throw-in at the spot nearest where the violation occurred.

Jump ball, traveling, and double dribble do not apply in this situation. A jump ball is called when two opposing players gain possession simultaneously, traveling refers to a violation where a player moves their feet excessively without dribbling, and a double dribble is a violation occurring when a player dribbles the ball, stops, and then resumes dribbling. None of these scenarios relate directly to a player stepping on the boundary line with the ball, which solely results in an out-of-bounds call.