4-2-2 Exception 2 Diagram
4-2-2 Exception 2 No. 4 is in position to kick and the holder has a knee(s) on the ground at the snap in PlayPic A. The exception to the basic dead ball rule is in effect when both these conditions are being met at the snap. The ball remains live for a kick as in PlayPic B, or if the holder rises with the ball (PlayPic C) to run, pass or dropkick.
4-2-2a Exception, 4.2.2 a-c On a busted play or fake, the holder must rise before advancing, handing or passing as seen in the PlayPic. If the holder rises to catch or recover an errant snap, and immediately returns his knee(s) to the ground and places the ball for a kick or again rises to advance, hand, kick or pass, the ball remains line.