NCAA - Pitcher has hands together before batter in box

[teebob21]

If the pitcher brings her hands together while the PU is signaling "Do Not Pitch" or less than 2 seconds after the PU stops signaling "Do Not Pitch," the PU should signal a "Delayed Dead Ball" and announce "Illegal Pitch."

This is the part that I agree with, but can't find rule support for. The timing of the pitch sequence is in 10.18, which calls for an immediate dead ball + ball on the batter, but the earlier parts of the rule cover the rest of the IP + DDB situations.

I sent this in to TPTB for clarification.