When is the ball out of bounds on the goal line or sideline?

New language for 2026-28 clarifies both:

• End line (Rule 5-1): the ball is out of bounds when a player in possession reaches the ball entirely across the goal line and outside the goal posts.
• Sideline (Rule 6-14-1): the ball is out of bounds when a player in possession reaches the ball entirely across the sideline.