Baffles in a liquid tank help control surge in which direction, according to the CDL manual?

Tanker (N) Endorsement • Free CDL Practice Question
Regulation

49 CFR 383.119(c); AAMVA CDL Manual Section 8.2.4, 'Baffled Tanks,' p.8-8-2

Why This Matters

A driver who assumes baffles solve the surge problem entirely can get caught off guard in a curve, where side-to-side surge is the real threat. Baffles help with braking and acceleration surge, but cornering still requires slowing down well below the posted curve speed.