What sequence of speed and throttle actions does the CDL manual recommend for a tank vehicle driver negotiating a curve, to maintain control and stability?

AAMVA CDL Manual, Section 8.3.3 (Curves), p.8-8-2

This sequencing (slow before, accelerate slightly during) is a core tested skill for the tanker endorsement because it directly addresses how to manage a top-heavy vehicle's momentum through a turn. Getting the order wrong is a common cause of real-world tanker rollovers.