United States Permit Test Coach
Traffic signalsQuestion 114 of 223

A flashing yellow light is added to a warning or regulatory sign. What should you do?

  1. Ignore the sign until the light stops
  2. Stop and wait for a green light
  3. Treat the sign as a rule for night only
  4. Pay extra attention to the sign and follow it
Show answer

Correct answer: Pay extra attention to the sign and follow it

A flashing yellow beacon on a sign tells you to take extra care. It also shows that the sign rule or warning is in effect now.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), 11th Edition with Revision 1 (FHWA, December 2025), Section 4A.04 Meanings of Flashing Vehicular Signal Indications, page 686

Practice traffic signals

Questions last reviewed: 18 October 2026