Section 35 Team A and B, Offense and DefenseArticle 1 Whenever a team is in possession (3-2-7), it is the Offense and, at suchtime, its opponent is the Defense.Article 2 The team that puts the ball in play is Team A, and its opponent is Team B. Forbrevity, a player of Team A is referred to as A1 and his teammates as A2, A3, etc.Opponents are B1, B2, etc.Note: A team becomes Team A when it has been designated to put ball in play, and itremains Team A until a down ends, even though there might be one or more changes ofpossession during the down. This is in contrast with the terms Offense and Defense.Team A is always the offense when a down starts, but becomes the defense if and whenB secures possession during the down, and vice versa for each change of possession.Article 3 A change of possession occurs when a player of the defensive team securespossession of a ball that has been kicked, passed, or fumbled by a player of the offensiveteam, or when the ball is awarded to the opposing team by rule. A change of possessionincludes but is not limited to:(a) an interception of a forward pass; or(b) a catch or recovery of a fumble or backward pass; or© a catch or recovery of a Scrimmage Kick, Free Kick, or Fair Catch Kick.(d) when the offensive team fails to reach the line to gain on fourth down.(e) when the offensive team misses a field-goal attempt.