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Before that time, a sideline with only a small amount of space typically 6" to 12" existed between the sideline stripe and the barrier which would provide the space for a ball carrier to step out of bounds before hitting the sideline barrier. Each team fields eight players at a time from a man active roster. If a player enters and leaves, from the moment he leaves the player is considered "dead" and cannot return to play until the designated time is served.
Exception: a "dead" player may participate on kickoffs, or as long snapper or holder. In , the AFL changed its substitution rules such that free substitutions are now allowed on all kickoffs. The most significant change is the introduction of free substitution, the so-called " Elway Rule".
Previously, AFL coaches were limited to one substitution per position per quarter. Beginning with the season, coaches were permitted to substitute players at will. The rationale was that free substitution would improve the overall quality of football in the league by giving coaches the freedom to put their best players on the field for every play of the game, and that teams would be able to select from a wider player talent pool when building their rosters.
Traditionalists however, believe the rule changes are the beginning of the removal of the "Ironman" two-way offense and defense style of play of arena football that the league has actively promoted for 20 seasons, and that removing the "Ironman" style of play takes away a key component of what makes arena football a distinctive sport over other versions of football NFL , CFL , other indoor leagues, etc.
Four offensive players must be on the line of scrimmage at the snap ; one of the linemen must declare himself the Tight End. One offensive player may be moving forward at the time of the snap. Three defensive players must be in a three- or four-point stance at the start of the snap. Two defenders serve as linebackers , called the Mac and the Jack.
The Mac may blitz from the side of the line opposite the offensive Tight End. The Jack's role has changed after new rules set in place by the league in The Jack cannot blitz, but under new, more defense-friendly rules, the Jack Linebacker may roam sideline to sideline within five yards of the line of scrimmage and drop into coverage once the Quarterback pump fakes. The ball is kicked off from the goal line. The team with the ball is given four downs to gain ten yards or score.
Punting is illegal because of the size of the playing field. A receiver jumping to catch a pass needs to get only one foot down in bounds for the catch to be ruled a completed catch, just as in college football. Passes that bounce off the rebound nets remain "live. All receivers can be in motion at the same time as the ball is being snapped. Indoor Football is looked at more like the outdoor games, where there are players just for offense and players just for defense.
The Alley Rule is an imaginary box that is at the line of scrimmage and goes five yards back on the defensive side.
This line is only the width of the two outside linemen on the offense. Nobody other than defensive linemen can be in this box or line.
It does make it harder to pass, which is most likely a big reason why all receivers can be in motion at the same time as the ball is being snapped. A really successful offense in Indoor Football could be looked at as even better in Arena Football. The Kicking Kickoffs are from the goal line. Kickers may use a one-inch tee. Punting is illegal. On fourth down, a team may go for a first down, touchdown or field goal.
The receiving team may field any kickoff or missed field goal that rebounds off the net. Any kickoff untouched which its out of bounds will be placed at the yard line or the place where it went out of bounds, whichever is more advantageous to the receiving team.
A unique exception involves the rebound nets. A forward pass that rebounds off of the endzone net is a live ball and is in play until it touches the playing surface.
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