GroundRules
49 CFR 393.19: Hazard warning signals.
Where this section sits in the code
- Title 49—Transportation
- Subtitle B—Other Regulations Relating to Transportation
- CHAPTER III—FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
- SUBCHAPTER B—FEDERAL MOTOR CARRIER SAFETY REGULATIONS
- PART 393—PARTS AND ACCESSORIES NECESSARY FOR SAFE OPERATION
- Subpart B—Lamps, Reflective Devices, and Electrical Wiring
The hazard warning signal operating unit on each commercial motor vehicle shall operate independently of the ignition or equivalent switch, and when activated, cause all turn signals required by § 393.11 to flash simultaneously.
Collected 2026-08-27T02:26:34Z. Source file · JSON