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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 ...
Gridiron football (/ ˈ ɡ r ɪ d aɪ. ər n / GRID-eye-ərn), [1] also known as North American football, [2] or in North America as simply football, is a family of team sports derived from rugby football (and football, by extension) primarily played in the United States and Canada.
Because of these rules, various leagues 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 within this structure ...
The National Federation of State High School Associations (NFHS) establishes the rules of high school American football in the United States. In Canada, high school is governed by Football Canada and most schools use Canadian football rules adapted for the high school game except in British Columbia, which uses the NFHS rules.
American football rules; B. Burnside rules; I. Illegal procedure; P. Penalty (gridiron football) This page was last edited on 16 June 2024, at 08:17 (UTC) ...
An American six-man playing field. There are two versions of six-man football, one American and one Canadian. [4]Six-man American football is played on an 80-yard-long (73-m) by 40-yard-wide (37-m) field in most circumstances; the high school rulebook allows games to be held on a normal 100-yd (91-m) by 53 1 ⁄ 3-yd (48.8-m) field used in eleven-man football if the teams and leagues so choose.
In American rules, to recover a scrimmage kick (punt or missed field goal) and retain possession, the ball must be touched beyond the line of scrimmage by a member of the receiving team (defense). If the ball is touched by the receiving team and then recovered by the kicking team, the kicking team retains possession and is awarded a first down.
A pair of officials at a Maryland high school football game in September 2008. White knickers used to be worn by officials; black trousers are now standard.. For ease of recognition, officials are usually clad in a black-and-white vertically striped shirt and black trousers with a thin white stripe down the side (this was formerly white knickers with black/white striped stirrup stockings or ...