The ball has to be in the touchdown zone. If it is above the zone it is still a touchdown.
Take Troy Polamalu's touchdown on Dec,12,2010.
He dived, broke the plane of the goal line but he was holding the football above the zone so it counts as a touchdown. In some cases the ref might not count it.
you just answered your own question. as long as a player is in bounds with control of the ball as it crosses the plane then it is a touchdown. if the ball does not cross the plane but a player does then it is not a td. if the ball is beyond the plane and out of bounds but the player has his feet in bounds with control of the ball it is a td.
As long as the player is not ruled out of bounds it is a touchdown. The goal line technically extends past out of bounds.
yes, as long as the player that tips has not stepped out of bounds
The goal line is marked inbounds, but extends beyond the in bounds line. The pylon is the point at which the goal line is out of bounds. It is used by the sideline officials (usually deep wings: FG & SG) to determine when a touchdown is scored or not on plays that are at made at one of the four corners of the endzone. In the NFL, the ball has to be inside the pylon when running into the endzone to be considered a touchdown. In the NCAA starting this year (2012), and part of the player can touch the pylon and as long as the ball is inside the goal line extended (extending into the out of bounds area), to be considered a touchdown. In high school, the ball has to cross the goal line extended to be considered a touchdown.
Yes. The technical way to score a touchdown is to have to ball "cross the plane" into the endzone without the player being down or out of bounds. With a catch, the player must establish himself as inbounds while maintaining possession. In the NFL, the player must do so with two feet inbounds. In NCAA Division I football, the player only needs to do so with one foot inbounds. With a run, the player must have not stepped out of bounds before the ball crosses the plane into he endzone.
Yes, it is touchdown. He can just say, "I dropped the ball because I thought had already scored. I wanted to celebrate."
The NFL set precedence on December 14, 2008 on what a touchdown reception is. Typically, it is when any part of the ball, legally in possession of a player inbounds, breaks the plane of the opponent's goal line, provided it is not a touchback or when the ball is touched on the pylon before a player goes out of bounds. Apparently, now, it is when the players feet are both in the end zone and the ball is in their possession, but does not break the plane of the opponent's goal line. According to a Google search, the rule regarding pylon touchdown dives was revisited and clarified. Previously, a player just had to have some portion of his body over the goal line or pylon to count a touchdown, but the rule was revised for 2007 to make it necessary to have the ball touch the pylon or break the plane above the pylon to count as a touchdown.