You are driving a tank vehicle and begin braking to come to a stop at a red light. According to CDL guidance for tank vehicles, what should you do with brake pressure as the vehicle slows?

49 CFR 383.119(a)-(b); AAMVA CDL Manual §8.3.2, p.8-8-2

Liquid cargo keeps moving even after the truck starts to slow down. If you let off the brakes too early, the surging liquid can shove the truck forward right when you think you've stopped. Steady, sustained brake pressure gives the surge somewhere to go without throwing off your stop.