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A standard football game consists of four 15-minute quarters (12-minute quarters in high-school football and often shorter at lower levels, usually one minute per grade [e.g. 9-minute quarters for freshman games]), [6] with a 12-minute half-time intermission (30 minutes in the Super Bowl) after the second quarter in the NFL (college halftimes are 20 minutes; in high school the interval is 15 ...
Because of these rules, various leagues of American football have enacted strict rules of uniform numbering so officials may more easily judge which players were eligible and which were not at the start of a play. For example, in college football, ineligible players wear numbers 50–79, while eligible receivers wear 1–49 or 80–99. Even ...
It is played with eleven players to a side, four downs and a 100-yard (91 m) field. The major professional league, the National Football League (NFL), has its own rule book. College football programs generally play under the code defined in the NCAA Football Rules and Interpretations.
In the NCAA and NFL, the ball is moved to the 20-yard line following a punt, and to the 25-yard line following a kickoff, or free kick after a safety. Under NCAA and NFL rules, a kickoff or free kick after a safety that ends in a fair catch by the receiving team inside its own 25-yard line is treated as a touchback, with the ball moved to the 25.
Pages in category "Gridiron football rules" The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes. A.
In gridiron football, there are several different rulings for encroachment: . In the NFL, encroachment occurs when, before the snap, a defensive player illegally crosses the line of scrimmage and makes contact with an opponent or has a clear path to the quarterback.
In gridiron football, replay review is a method of reviewing a play using cameras at various angles to determine the accuracy of the initial call of the officials.An instant replay can take place in the event of a close or otherwise controversial call, either at the request of a team's head coach (with limitations) or the officials themselves.
In gridiron football, not all players on offense are entitled to receive a forward pass: only an eligible pass receiver may legally catch a forward pass, and only an eligible receiver may advance beyond the neutral zone if a forward pass crosses into the neutral zone. If the pass is received by a non-eligible receiver, it is "illegal touching ...