Sliding at home/second base?

[steelehead]

I might be blind (bad for an ump) but I can't find ANYWHERE in the NFHS 2002 Rule Book where it states that a runner MUST slide at home or any other base?

(A) Is it in there?
(B) If a runner does NOT slide at 2B as the defese is attempting to turn a DP and the "non-slide" alters the throw to first - can the runner at first be called out via the "interference" by the runner that did not slide?


Thanks.