Section 5: Rules of Play
Game Duration
- Quarters: 4 × 15 minutes — same as NFL
- Halftime: 20 minutes (can be shortened by mutual agreement). NFL halftime is 12 minutes (longer for Super Bowl).
- Between quarters: Teams switch ends with a 1-minute interval
Clock Rules — Key Difference from NFL
The most significant rule difference affecting game pace:
- First down clock stoppage: After every first down, the game clock stops until the referee signals the ball ready for play and the ball is snapped. In the NFL, the clock continues to run after first downs (except in the final 2 minutes of each half).
- Impact: This makes college football games significantly longer and allows more total plays per game
- Play clock: 40 seconds from the end of the previous play, or 25 seconds after certain administrative stoppages — same as NFL
- Running clock in blowouts: Beginning in 2023, if the score differential reaches 35+ points in the second half, the clock runs continuously except for scores, timeouts, and injuries
Overtime — Completely Different from NFL
NCAA uses an alternating possession overtime system, not sudden death:
- Coin toss: The visiting team calls the toss. Winner chooses offense/defense or which end of the field.
- Starting position: Each team gets possession at the opponent's 25-yard line
- 1st and 2nd overtime: Each team gets one possession. Touchdowns may be followed by a PAT (1 point) or two-point conversion.
- 3rd overtime onward: Teams must attempt a two-point conversion after touchdowns — no PATs or field goals allowed
- 4th overtime onward (since 2021): Each team runs alternating two-point conversion plays only — no drives from the 25
- NFL comparison: NFL uses a modified sudden death with guaranteed possession for both teams (since 2022). First team to score a touchdown wins; if the first team kicks a field goal, the other team gets a possession.
Catch Rule
A critical difference:
- NCAA: A receiver needs only ONE foot inbounds while maintaining control of the ball for a legal catch
- NFL: A receiver must have TWO feet (or one body part other than a hand) inbounds
- Impact: This makes sideline catches significantly easier in college football and affects defensive coverage strategy
Kickoffs
- Kicked from: The 35-yard line — same as NFL
- Fair catch inside 25: A fair catch on a kickoff inside the receiving team's 25-yard line results in a touchback, with the ball placed at the 25-yard line
- Touchback: Ball placed at the 25-yard line — same as NFL
- Onside kick: Same rules as NFL — must travel 10 yards before the kicking team can recover
Timeouts
- Each team: 3 timeouts per half — same as NFL
- Duration: 30 seconds for media timeouts, team timeouts vary by broadcast agreement
- Unused timeouts: Do not carry over between halves