Be the Referee: 40-Second Play Clock
August 30, 2018
In this week's edition, assistant director Brent Rice explains how Michigan is continuing to experiment with a 40-second play clock in football.
Be The Referee is a series of short messages designed to help educate people on the rules of different sports, to help them better understand the art of officiating, and to recruit officials.
Below is this week's segment – 40-Second Play Clock - Listen
There’s an experiment taking place on a number of high school football fields across the state again this year. Michigan is experimenting with a 40-second play clock in football.
This is designed to provide more consistency from play to play as the ball must be snapped 40 seconds after the end of the previous play and is not dependent on the referee’s subjective signal.
When play is continuing without a stoppage, the 40-second play clock will be used. If play has been stopped for a time out or penalty, the play clock will be set at 25 seconds.
After two seasons, the feedback received from coaches and officials has been very positive, and there’s a possibility the Michigan experiment may become a new national playing rule soon.
Past editions
August 23: Football Rules Changes - Listen
Be the Referee: Illegal Substitution/Participation
By
Paige Winne
MHSAA Marketing & Social Media Coordinator
November 11, 2025
Be The Referee is a series of short messages designed to help educate people on the rules of different sports, to help them better understand the art of officiating, and to recruit officials.
Below is this week's segment – Illegal Substitution/Participation - Listen
We’re on the football field this week with 23 players.
Twenty-three is one too many; there should only be 22 on the field at once – 11 on offense, 11 on defense.
But on this play, the offense had a 12th player lined up on the field.
What’s the call?
It depends on when the penalty is spotted.
If the officials catch it before the play is run, that’s an illegal substitution and a 5-yard penalty.
But if the ball is snapped and a play is run with 12 on the field – and the 12th player is not attempting to get off the field – then it’s illegal participation and a 15-yard penalty. It’s also a 15-yard penalty if the offense uses a substitution to create a deception.
Previous 2025-26 editions
Nov. 4: Losing a Shoe - Listen
Oct. 28: Unusual Soccer Goals - Listen
Oct. 21: Field Hockey Penalty Stroke - Listen
Oct. 14: Tennis Double Hit - Listen
Oct. 7: Safety in Football - Listen
Sept. 30: Field Hockey Substitution - Listen
Sept 23: Multiple Contacts in Volleyball - Listen
Sept. 16: Soccer Penalty Kick - Listen
Sept. 9: Forward Fumble - Listen
Sept. 2: Field Hockey Basics - Listen
Aug. 26: Golf Ball Bounces Out - Listen