CLOCK WIND ON THE READY FOR PLAY
The UMPIRE and LINE JUDGE will signal by twirling their index finger at the waist.
CLOCK STARTS ON THE SNAP
The UMPIRE, HEAD LINESMAN, and LINE JUDGE will signal with arms forming an X at the chest.
REFEREE SIGNAL TO ASK THE STATUS OF THE TAPE FROM THE HEAD LINESMAN
With both arms straight out below the waist outside the frame of the body, wiggle both hands.
RESPONSE OF TAPE STATUS FROM HL
A single-arm straight out below the waist outside the frame of the body wiggle hand.
Downfield arm if the ball is beyond the tape.
Up-field arm if the ball is behind the tape.
OFFICIAL RESPONSIBLE FOR THE CLOCK
Within one minute of the end of any period, the official facing the clock (REFEREE or UMPIRE) may be responsible for the clock. Indicate responsibility by tapping the top of your hat. Make certain the other officials noted above recognize the signal.
LINE TO GAIN REACHED AND CLOSE
If the line to gain is clearly reached, the LINE JUDGE will stop the clock and indicate first down by pointing his index finger across his chest.
If it is close (within one yard on either side of the line to gain), the LINE JUDGE will pinch-in and yell to the crew, “close” until the crew recognizes the situation.
The REFEREE will then determine if the clock should be stopped to take a longer look or to indicate first down.
The UMPIRE may also indicate if the play is “close” to a first down.
CHARGED TIME OUTS
Upon player or Head Coach request, any official will stop the clock and the REFEREE will point with both arms 3 times toward the team charged with the time out.
Flank officials can use Cross-field mechanics to help each other with the progress of runners on plays ending near the sideline.
Flank officials should be mirroring the progress of the runner at all times.
If the covering official uses the WIND THE CLOCK signal for a play that ends near the sideline, it is imperative that the flank official move to the runner’s forward progress spot on the other side of the field.
The covering official can then trail the play appropriately and safely. He can allow the players to clear and then look to the opposite flank official for the appropriate spot.
Both officials must agree to use cross-field mechanics before the game.