 In 1996, the overtime rules originally utilized by Kansas high school teams were adopted by the NCAA, except with the starting point at the 25-yard line instead of the 10-yard line as prescribed in the NFHS rules, but under NFHS rules, states may opt to start each period from another point (such as the 20 or 25).Play in all forms of indoor football has tended to emphasize the forward passing game at the expense of rushing the football.Whereas in a typical National Football League game perhaps half of the total offensive plays are rushing plays and 35 or 40 per cent of all of the yardage gained comes from rushing plays, in Arena and other indoor football it is far more common for rushing plays to constitute only 10 per cent of the offense, or even less in some instances.