The game format and rules of play.
15
Players
minimum per team
3
Downs
per possession
12min
Game clock
per period
25s
Short play clock
after scores & turnovers
45s
Long play clock
between downs
2
Timeouts
per team, per period
25s
Timeout length
countdown
Score
Touchdowns & safeties
Change of possession
Punts, interceptions & turnovers on downs
Penalty
Offensive & defensive penalties
Offense
Defense