American Football NCAA Rule 2-25-8

The spot where the run ends is the point:
a. Where the ball is declared dead in player possession.
b. Where player possession is lost on a fumble.
c. Where handing of the ball occurs.
d. Where an illegal forward pass is thrown.
e. Where a backward pass is thrown.
f. Where an illegal scrimmage kick is made beyond the line of scrimmage.
g. Where a return kick occurs.
h. Where player possession is gained under provisions of the “momentum rule” (Rule 8-5-1-a Exceptions).