According to the CDL manual, how should a tanker driver approach highway curves, on-ramps, and off-ramps compared to the posted speed limit for those curves?

49 CFR 383.119(f) - Effects of road grade and curvature on vehicle control; AAMVA CDL Manual Section 8.2.1, p.8-8-1

Rollover is one of the leading causes of fatal tank-vehicle crashes, and it often happens on curves and ramps that a driver would take safely in a car. Knowing that posted curve speeds are not safe enough for a top-heavy tanker is a concrete, testable rule that protects both the driver and the public around the vehicle.