Code
AQUATIC VENUES where the maximum water depth is six inches (15.2 cm) of water or less (such as WADING POOLS and ACTIVITY POOL areas) shall not be required to have depth markings or “No Diving” signage.
Annex
A WATERSLIDE RUN-OUT in a WADING POOL may hold up to six inches (15.2 cm) of water without necessitating a no-diving sign or depth marker.