This page is an entry in the Key.

waves
in bodies of water

In a TTG photograph, if waves in a body of water are blurred unrecognizably (or rendered “invisibly” — that is, as a smooth surface) then the photograph will not meet the sasibe standard and will not meet P5 — and thus cannot qualify for the TTG label.

TTG treats “waves in a body of water” differently from “falling water in fountains and waterfalls” because “waves” move more slowly than “falling water” does, so the public is accustomed to seeing individual waves in photographs taken using automatic settings.