Transportation Platoon Squads

Reference: FMI 4-90.1, pg. 3-27, figure 3-3
Issue: The wire diagram indicates the Trans PLT from the distro company has 3 x Truck Sections but has a squad icon (a single dot) above the unit symbol. WEBTAADS indicates 4 x Truck Squads are in a Trans PLT.
Question: Are there 3 x sections or 4 x squads?

There are four squads. Rule of thumb – unless there’s a pending force design update, USAFMSA is always right.