NCAA Volleyball

[Scrapper1]

15.2.4.1 Encroachment into the opponent’s court with the foot, feet or
hand(s) is permitted, provided some part of the encroaching extremity
remains in contact with or directly above the center line, and there is
no interference with opponents. It is not a fault to contact the opponent’s
team court with the hair.
15.2.4.2 Encroachment into the opponent’s court with any part(s) of the
body is permitted, provided some part of the body remains either in
contact with or directly above the center line, and there is no interference
with opponents. In addition, completely crossing the center line with
the foot, feet or hands, or encroachment with other body parts must not
present a safety hazard to opponents.

Why is 15.2.4.1 in the book? Doesn't 15.2.4.2 sort of overrule it? (1) says you can have a hand or foot over the line as long as part of that hand or foot stays over the line. But (2) says that your whole body can be over the line as long as ANY part of your body stays on or over the line.

So what's the point of talking about a hand or foot, if it's ok to put your whole body across?

I called a girl early in the season for stepping completely across the line with one foot. No part of her foot was on or above the center line. My partner told me that wasn't right. But isn't that exactly what (1) says?