Regulatory signs
No Right Turn sign
You may not turn right at this location, including on a red light.
- Square
- White
- MUTCD R3-1
Shape and background first
Federal designation R3-1 in the MUTCD, the national standard every state signs to. Common at intersections bordering one-way streets, near schools with heavy crosswalk traffic, and at ramps that meet a one-way arterial.
What the MUTCD specifies
Designation: R3-1
MUTCD Section 2B.26
Conventional road size: 24 x 24 in
Standard: Install a movement prohibition sign where right turns are prohibited on an intersection approach, subject to the section's exceptions.
Source: Federal Highway Administration, MUTCD 11th Edition (December 2023), Part 2, Table 2B-1; Section 2B.26, verified 2026-09-26.
What the test wants you to know
The mistake people make
This sign cancels the usual right-on-red allowance at that specific corner, which is the detail most test takers miss. It shows up most often where a right turn would send you the wrong way down a one-way street or straight into a crosswalk full of pedestrians.
