No Trucks Sign
MUTCD R5-2
Trucks are prohibited from using this roadway.
What it looks like
A white square showing a black truck symbol inside a red circle crossed by a red slash, marking the road as closed to trucks.
When you'll see it
Posted at the entrance to roads, bridges, or parkways where trucks are barred because of weight, height, or local restrictions.
What to do
If you are driving a truck you must not use this roadway; follow the designated truck route instead.
Related signs
Source: Manual on Uniform Traffic Control Devices (MUTCD), 11th Edition — FHWA.