- An indoor padded surface 85 feet wide and 50 yards long with eight-yard endzones.
- Goal posts are nine feet wide with a crossbar height of 15 feet (NFL goal posts are 18 1/2 feet wide with the crossbar at 10 feet).
THE PLAYERS AND FORMATIONS
- Eight players on the field; 21-man active roster; three-man inactive roster.
- Four (4) offensive players must line up on the line of scrimmage.
- Three (3) defensive players must be down linemen (in a three of four-point stance). One linebacker may blitz on either side of the center.
- Defensive front alignment is two (2) or more yards off the line of scrimmage. No stunting or twisting.
- Offensive motion: Two receivers may go in forward motion before the snap.
- Four 15-minute quarters, with a 15-minute halftime.
- The clock stops for a player injury, challenges, a penalty, all scores except a touchdown, one-minute warning prior to each half, out-of-bounds plays, incomplete passes, and first-downs within the last minute of each half.
- Each team is allowed three (3) time-outs per half.
MOVEMENT OF THE BALL AND SCORING
- Four (4) downs are allowed to advance the ball ten (10) yards for a first down or to score.
- Six (6) points for a touchdown.
- One (1) point when the kickoff returner fails to bring the ball off of his own end zone and is tackled.
- One (1) point for a conversion by place kick after a touchdown, two (2) points for a conversion by a dropkick, and two (2) points for a successful run or pass after a touchdown.
- Three (3) points for a field goal by placement.
- Two (2) points for a safety.
- 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 if they fail to pass the goal line the kicking team will be awarded one (1) point (“Rouge”).
- Any kickoff untouched which is out of bounds will be placed at the 20-yard line or the place where it went out of bounds, whichever is more advantageous to the receiving team.
- If the kick passes through the uprights during a kickoff, the kicking team will be awarded two (2) points. (“A Deuce”).
Passing rules in the IFL, are the same as outdoor NCAA Football in which receivers must have one foot in bounds. A unique exception involves a ball that hits the wall in flight. A forward pass that rebounds off the wall is a live ball and is in play until it touches the playing surface.
- Overtime is conducted the same as in NCAA Football. Each overtime period consists of a two-possession series with each team getting one possession on offense and one on defense. The team on offense will always start at the designated plus 20-yard line (unless relocated by a penalty).
- The team that scores the most points during regulation and overtime wins the game. If the game is still tied after an overtime period, there will be another overtime period.
- Beginning with the third overtime period, teams that score a touchdown must attempt a two-point conversion.