What does the EXEMPT plaque mean?
The EXEMPT plaque (MUTCD R15-3P) is a railroad crossing sign under the federal Manual on Uniform Traffic Control Devices, the national standard the states build from. Aimed only at the vehicle classes carrying a standing duty to halt at every set of rails, school buses and placarded loads among them. At this crossing that duty is lifted, so those drivers keep rolling with the rest of the traffic.
Source: MUTCD 11th Edition, Part 8, Table 8B-1, checked 2026-09-09.
What shape and color is the EXEMPT plaque?
| MUTCD code | R15-3P |
|---|---|
| Group | Railroad crossing signs |
| Shape | Rectangular plaque below the crossbuck or advance warning sign |
| Color | White background, black legend and border |
What white means. Regulatory. A black legend on a white background is a law, not advice.
Railroad crossing signs. Advance warning, crossbuck and the passive versus active distinction. Rare on the road, common on the test, and the questions turn on who has right of way.
What is the EXEMPT plaque often mistaken for?
Read by ordinary drivers as meaning the crossing is out of use. It is aimed only at the vehicle classes that otherwise must stop, and there is a matching yellow advance version, W10-1aP.
What are the other railroad crossing signs?
All 8 railroad crossing signs on one page, or every US road sign by shape and color.
Test yourself on this sign and the rest of the set with a road signs practice test for Florida, Texas or California.
The artwork is the federal design itself, which the manual dedicates to the public domain in MUTCD 11th Edition, Part 1, Section 1D.06, checked 2026-09-09. The Interstate Shield, the 511 pictograph and the National Scenic Byway graphic are named exceptions and are not reproduced anywhere on this site.
Source: Manual on Uniform Traffic Control Devices, 11th Edition. Not affiliated with or endorsed by the Federal Highway Administration or any state agency.