What three types of driver inputs does the CDL manual identify as causes of a skid in a tank vehicle?

49 CFR §383.119(i) – General operating practices and procedures for tank vehicles not otherwise specified; AAMVA CDL Manual §8.3.5.

Skid prevention starts with recognizing which of your own driving inputs can trigger one. For tank vehicles, aggressive steering, throttle, or brake inputs are especially dangerous because the shifting liquid load reduces the margin for error that a solid-load truck would have.