if your on offense it's false start, if your on the defense it's offsides
All of it. It's not where the player's body is, it's where the ball is. The ball has to be completely across the line of scrimmage to count as an illegal forward pass.
it is not legal to drop kick beyond the line of scrimmage. all you can do beyond the line of scrimmage is pitch the ball backwards.
Yes, a back in motion can move toward the line of scrimmage, but certain conditions apply. If the player is in motion at the snap, they must not be moving forward toward the line of scrimmage at the moment the ball is snapped; otherwise, it would be considered a penalty for illegal motion. The player can, however, be in motion laterally or backward as the play begins.
there must be 7 men on the line of scrimmage, no more no less
Line of scrimmage.
on tv, the line of scrimmage is usually blue and the first down line is usually yellow.
the line of scrimmage
The line of scrimmage.
On the offensive side, nobody has to be in a down position on the line of scrimmage, but there must be six men on the line. The defense does not have any regulations as to where they must line up on the line of scrimmage.
It is on the offensive side of the ball, across the line of scrimmage. It is called off sides or neutral zone infraction.
Yes, in American football, a receiver in motion must be set before the snap of the ball if they are moving towards the line of scrimmage. They must come to a complete stop and be set for at least one second before the snap. However, if the receiver is moving parallel to or away from the line of scrimmage, they can remain in motion at the time of the snap.
In the NFL, there is no such thing as pass interference (PI) on forward passes that do not go past the line scrimmage but I recently watched a college football game in which a PI was called on a forward that never reached the line of scrimmage even though I always believed that there is no such thing as PI if such pass was in the backfield (behind the line of scrimmage). So I am not clear on the rule concerning passes that do not cross the line of scrimmage, in college football.