| Before exiting a curve | |
| Before starting up a grade | |
| Before entering a curve | |
| Before starting down a grade |
| Headlights, signal lights, clearance lights | |
| Fuel tank, tire pressure, couplings | |
| Cab interior, tire tread, brake lights | |
| Brakes, air lines, brake lights |
| If you`re carrying a lighter load your required clearance may be more than you think | |
| Driving close to the center line will get you a few more inches of clearance | |
| You should assume that this posted clearance is correct | |
| If you`re carrying a heavier load your required clearance may be more than you think |