Are flashing brake lights allowed under FMVSS 108?

May 24, 2021

Bob Raybuck

NTEA Director of Technical Services

We were told Federal Motor Carrier Safety Administration would allow our delivery fleet to have brake-activated pulsating warning lamps. However, our vehicle builder said they can’t install flashing brake lights on our new trucks and certify the vehicles to Federal Motor Vehicle Safety Standard 108. Can you explain why?

Make NTEA your Association today and unlock access to exclusive resources, tools and insights.

Join online

Mud flap requirements for commercial vehicles

Whether you call them mud flaps, splashguards, mud guards or aprons, NTEA members have historically asked — and have often been surprised to learn — that there are no federal government regulations for their application...

August 1, 2025

Tech Trends

FMVSS 110

For vehicles 10,000 pounds gross vehicle weight rating (GVWR) or less, the selection of tires and rims is governed by Federal Motor Vehicle Safety Standard (FMVSS) 110. This standard also requires specific labeling...

August 1, 2025

Tech Connections

Usage requirements for vehicle placards vs. load carrying capacity modification labels

From an NTEA member Can you explain the difference between the tire and loading information label and the small, yellow load modification label, including when each should be used? The usage requirements for both of...

July 3, 2025

Are flashing brake lights allowed under FMVSS 108?

Recommended Articles

Mud flap requirements for commercial vehicles

FMVSS 110

Usage requirements for vehicle placards vs. load carrying capacity modification labels