Step on Line -- Legal or Illegal?

[BillyMac]

Originally Posted by Juulie Downs

I thought the semi-circle was also illegal for the shooter to step on.

Of course not, Larry bird did it over 5000 times and was never called for a single violation. But, of course, he was Larry Bird.

[Jurassic Referee]

Originally Posted by Nevadaref

If a player is touching a lane line, the player is within the FT lane.
If a player is touching the 3pt arc, the player is inside the 3pt area.
If a player is touching the division line that player is within the backcourt.
Touching the FT semi-circle puts the player within the area allowed for the free-thrower.

Perhaps someone can phrase it more smoothly in a single sentence, but that is the gist of it.

From the time that the ball is at the disposal of a free-thrower until the free throw restrictions end, no player may legally step on the the 3-point line or on any line within the 3-point line.

I think that defines all free throw violations concerning the lines.