Signals at the end of the down that start the :40 play clock:
Time-out, Dead ball with one arm up & incomplete pass.
One thousand one, one thousand two (two seconds) begin play clock.
Other signals:
:25 (one hand above the head) :40 (two hands above the head)
Come from back judge (primary) or referee (secondary)
Be aware of silent wind:
(first down, play clock is running & then referee will start game clock with
no whistle)
Change of Possession when Team B Snaps:
Turnover (interception, fumble recovery) not meeting line-to-gain, punt, etc.
Always :25 with referee chop.
Scores:
Always :25 with referee chop.
New Series after Kickoff:
Always :25 with referee chop.
2020 New Rule:
Play Clock at :40 for defensive injury or helmet is off.
Matrix (All :25 on Play Clock)
Matrix (All :40 on Play Clock)
