Be the Referee: Sideline Management

December 5, 2014

This week, MHSAA assistant director Mark Uyl dicusses how the sideline rule helps to keep the adults working in football, including coaches and officials, safe during football games. 

"Be the Referee" is designed to help educate people on the rules of different sports, to help them better understand the art of officiating and to recruit officials. The segment can be heard on Mondays, Wednesdays and Fridays during the school year on The Drive With Jack Ebling on WVFN-AM, East Lansing. 

Below is this week's segment - Sideline Management - Listen

The hottest topic right now in the sport of football deals with safety. We have talked a great deal over the fall about some new rules that have improved player safety. Today we’re going to focus on the adults - specifically coaches and officials that work at the sideline area just in front of the team box.

The rules require that from the time just before the snap until the end of the play, all coaches and team personnel must be completely out of the 6-foot safety zone located in front of the team box at each sideline. This then gives the official plenty of room to work unimpeded in either direction.

Now as soon as the play ends, coaches can move into this area to instruct their players or send in the next play and then move back prior to the next snap.

Past editions
Nov. 19 - 7-Person Mechanics - Listen
Nov. 12 - Blocking Below the Waist - Listen
Nov. 5 - Tournament Selection - Listen
Oct. 29 - Uncatchable Pass - Listen
Oct. 22 - Preparation for Officials - Listen
Oct. 15 - Automatic First Downs - Listen
Oct. 8 - Officials & Injuries - Listen
Oct. 1 - Overtime - Listen
Sept. 25 - Field Goals - Listen
Sept. 18 - Tackle Box - Listen
Sept. 11 - Pass Interference - Listen
Aug. 25 - Targeting - 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