Regulatory signs
No Trucks sign
Trucks above the size or weight noted, or all trucks if no plate is attached, may not use this road. Cars and other passenger vehicles are not affected.
- Square
- White
- MUTCD R5-2
Shape and background first
Federal designation R5-2 in the MUTCD, the national standard every state signs to. Common on residential streets, parkways, and bridges or tunnels with a clearance or structural limit that cannot support truck weight.
What the MUTCD specifies
Designation: R5-2
MUTCD Section 2B.45
Conventional road size: 24 x 24 in
Guidance: Place the sign on the right side of the road, far enough from the intersection that drivers turning onto the restricted road can clearly see it.
Source: Federal Highway Administration, MUTCD 11th Edition (December 2023), Part 2, Table 2B-1; Section 2B.45, verified 2026-09-26.
What the test wants you to know
The mistake people make
Treat this as a vehicle class restriction rather than a warning about heavy traffic. A small plaque underneath often carves out an exception for local deliveries, so a truck making a delivery on that street is not automatically breaking the law.
