Warning signs
Emergency Vehicle sign
Ambulances, fire trucks or police vehicles may pull directly onto the road from a station drive ahead. Be ready to slow or stop for one entering traffic.
- Diamond
- Yellow
- MUTCD W11-8
Shape and background first
Federal designation W11-8 in the MUTCD, the national standard every state signs to. Posted at the driveway of a fire, ambulance or police station wherever it opens directly onto a through road.
What the MUTCD specifies
Designation: W11-8
MUTCD Section 2C.54
Conventional road size: 30 x 30 in
Source: Federal Highway Administration, MUTCD 11th Edition (December 2023), Part 2, Table 2C-1, verified 2026-09-26.
What the test wants you to know
The mistake people make
This sign warns about a vehicle entering the roadway, which is a different problem from an emergency vehicle already behind you with lights running. Tests separate the two: here you watch a driveway, there you pull right and stop.
