American Football NCAA Rule 11-1

Article 1

The officials’ jurisdiction begins 90 minutes before the scheduled kickoff and ends when the referee declares the score final [S14]. It is expected that a minimum of three officials will take the field at 90 minutes before kickoff. All officials will be on the field at 40 minutes prior to kickoff.

Article 2

At 90 minutes before kickoff the playing field will be divided into an “L-shaped” configuration with the 30 yard-lines forming the “L” (See Appendix D). No later than 40 minutes before kickoff, the configuration will change to the “Buffer Zone” configuration, and no player shall enter the 10-yard buffer zone between the 45 yard-lines (See Appendix D).

Article 3

When the field is available to players as determined by game management during the halftime intermission, the playing field will be divided into an “L-shaped” configuration with the 30 yard-lines forming the “L” (See Appendix D).