American Football NCAA Rule 3-3-2-d

d. Starts on the Snap.
For each of the following, the game clock is stopped on an official’s signal. If the next play begins with a snap, the game clock will start on the snap:
1. Touchback.
2. With fewer than two minutes remaining in a half a Team A ball carrier, fumble or backward pass is ruled out of bounds. (Exception: After a Team A forward fumble goes out of bounds, the clock starts on the referee’s signal.)
3. Team B is awarded a first down and will next snap the ball (A.R. 3-3- 2-V).
4. A forward pass is ruled incomplete.
5. A team is granted a charged timeout.
6. The ball becomes illegal.
7. A period ends.
8. A legal kick down ends. (A.R.3-3-2-VI)
9. A return kick is made.
10. A scrimmage kick is made beyond the neutral zone.
11. Team A commits a delay-of-game foul while in a scrimmage-kick formation.