Where is the ball spotted after defensive pass interference?

Answer 1

In the NFL, the ball is spotted when wherever the pass interference penalty occurred and is an automatic first down. In NCAA football, the ball is spotted wherever the penalty occurred up to 15 yards and is an automatic first down.

Answer 2

In college, from the original line of scrimmage.

In the NFL, from the spot of the kick. If the kick was taken from inside the 20, the ball is moved out to the 20.

Answer 3

In college, the original line of scrimmage.

In the NFL, from the spot of the kick. If the kick was attempted from inside the 20, the ball is moved out to the 20.