Offensive Pass Interference occurs in American football when an offensive player illegally hinders a defensive player from making a play on the ball. This typically happens when a receiver pushes, holds, or otherwise makes physical contact with a defender before the ball arrives. The penalty is called to ensure fair play and to protect the integrity of the game. When Offensive Pass Interference is called, the offensive team is penalized by losing yards, usually 10 yards from the previous spot. This can significantly impact the team's ability to advance the ball and score. The referee's decision is based on their judgment of the play and the actions of the players involved.