FMCSA moves to exempt mirrorless truck from federal regulations

 Stoneridge's MirrorEye system features two cameras mounted at the top of the doors on either side of the vehicle.
Stoneridge’s MirrorEye system features two cameras mounted at the top of the doors on either side of the vehicle.

The FMCSA has formally moved to exempt the MirrorEye Camera Monitor System (CMS) from Stoneridge from federal regulations as the company seeks to begin on-road testing of the system on vehicles without side mirrors.

The Agency published today in the Federal Register an exemption request from Stoneridge that would allow the MirrorEye to serve as a substitute for regulations requiring two rear-vision mirrors, one on each side of the vehicle, as required by Federal Motor Carrier Safety Regulations (FMCSRs).

Stoneridge believes the system meets the requirements under National Highway Traffic Safety Administration (NHTSA)’s standards which are cross-referenced by the FMCSRs and “would maintain a level of safety that is equivalent to, or greater than, the level of safety achieved without the exemption because CMS meets or exceeds the performance requirements for traditional mirrors.”

The Federal Register notice opens a 30-day window for comments before FMCSA rules on the exemption request.

“The MirrorEye CMS consists of multiple digital cameras mounted on the exterior of the CMV and enclosed in an aerodynamic package that provides both environmental protection for the cameras and a mounting location for optimal visibility. Each camera has video processing software that presents a clear, high-definition image to the driver by means of a monitor mounted to each A-pillar of the CMV, i.e., the structural member between the windshield and door of the cab. The company explains that attaching the monitors to the Apillars avoids the creation of incremental blind spots while eliminating the blind spots associated with conventional mirrors,” the exemption request noted.

In the Federal Register notice, Stoneridge states the following safety factors its MirrorEye provides:

  • Greater field of view (FOV) than conventional mirrors – Mirrors are replaced by wide angle, narrow angle and look-down cameras expanding the FOV by an estimated 25%.
  • Fail-safe design – The CMS has independent video processing of multiple camera images so that in the unlikely event of an individual camera failure, the other camera images continue to be displayed. This ensures that real-time images are continuously displayed without interruption.
  • Augmented and enhanced vision quality – The use of high-definition digital cameras provides for color night vision, low light sensitivity and trailer panning capabilities. This assists with night driving, operating under other low lighting conditions, and provides for glare reduction.
  • Trailer panning – The CMS automatically tracks the end of the trailer to keep it in view while the vehicle is moving forward. Stoneridge believes this feature could eliminate collisions associated with the CMV driver making a right-hand turn, and incidents where the CMV strikes a pedestrian or bicyclist while making right hand turns.

“Stoneridge also believes use of its CMS may help to reduce driver fatigue by requiring less head movement by drivers compared to the number of head movement needed to use conventional mirrors,” the company said.

In an earlier interview with FreightWaves, Stoneridge officials said the system could also lead to reduced fuel savings. Removing the mirrors provides a 2-3% fuel savings, they said.

The MirrorEye system features a 12.3-in. high definition display on the driver’s left and a 15-in. display on their right. In the middle top of the window is another display, giving the driver complete visibility from 5-6 cameras mounted on the vehicle.

The displays show blind spots as well as the entire length of the trailer in full color and cameras, which are heated for easy defrosting, are shielded from the weather to ensure a clear view.

Schneider National, J.B. Hunt and Maverick Transportation are all said to be testing the system.

As a truck turns, the cameras pan so the driver continues to have full visibility. The system also features an advanced image handling system that adjusts visibility in direct sunlight so drivers are not blinded and can continue to see clearly.

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Brian Straight

Brian Straight covers general transportation news and leads the editorial team as Managing Editor. A journalism graduate of the University of Rhode Island, he has covered everything from a presidential election, to professional sports and Little League baseball, and for more than 10 years has covered trucking and logistics. Before joining FreightWaves, he was previously responsible for the editorial quality and production of Fleet Owner magazine and Brian lives in Connecticut with his wife and two kids and spends his time coaching his son’s baseball team, golfing with his daughter, and pursuing his never-ending quest to become a professional bowler.


  1. So tell me how will this work is places like Montana where satellite signals and weather is an issue? I see frozen cameras happening.

    1. I was wondering the same but it doesn’t use satellite it uses bluetooth and it has built in defroster I’m from Montana and I’d try it on my old frieghtliner

  2. This is new innovation, this is the future. There’s no doubt in my mind that the product developers have considered things like severe weather and satellite signals. I’ve actually had the pleasure of seeing one of the Stoneridge trucks, and not only see it but jump In to the driver seat and adjust the mirrors myself. The technology is incredible. The range in motion the mirrors have is OUTSTANDING, you can see blind spots that you never new existed. As for staying a wake…. the hours of service for trucks drivers is up to 11 hours but are limited to 14 hours…not to mention this is a mandate now! These drivers know what kind of job they signed up for and should be taking the allocated time they have to get much needed rest so they can be awake out on the road. I would argue that the mirror is not exactly what keeps you awake.

  3. I have yet to meet an electrical or electronic system that doesn’t eventually find an innovative to send an electron in the wrong direction. If I’m in rush hour highway traffic (you know the type, congested but still moving at around 40-50 mph), I’m in the 2nd, 3rd or 4th lane and the camera goes out on the passenger’s side, how do I safely get over to the side (or an exit) without any way of seeing what’s in my brand new, 73 foot blind spot?

  4. Electronics fail at some point. I would feel sorry for the family next to that truck when their camera mirror system goes out. Now… if you use it as an added feature to what is already in place then you have a good back up in case something goes wrong.

  5. David Bynes-The camera is connected to the engine. The only way the camera would go out is if the engine goes out….At that point you can’t drive the truck anyway.

  6. I have the camra system on my truck however if you are jusy looking at that your not an observant driver, i like it only for one thing to argue with the dot and all cops causr they target. In bad weather they are worse then mirrors. And in rough roads and terrain even harder.

  7. You can’t back a tractor trailer by looking at a video screen in your truck, cameras are fine but not a substitute for mirrors.

  8. Leave the mirrors for added safety and as a contingency plan in case technology fails, which it does CONSTANTLY. smdf

  9. Here’s an idea. Hire a real driver. The only purpose of the majority of technology in Trucking is to make the geek squad rich along with lobbyists. The biggest problem with safety today are the mega carriers pumping out drivers like puppy mills. Of course they need ELD’s and anything else they can handicap them with. They aren’t drivers and the majority last less than a year unless they kill someone sooner. It’s all a scam.

  10. The government finally woke up! We spoke about getting rid of outside mirrors on trucks 25 years ago in the Society of Automotive Engineers (SAE) Truck and Bus Visibility Committee. Large mirrors create blind spots that good drivers have learned to work around. They interfere with air flow, creating drag that costs 2-3% more in fuel costs. Even with heaters, they accumulate snow and ice and are difficult to use in high-glare conditions.
    Closed circuit or Bluetooth TV cameras with light-adjusting features, all proven tevhnologies, should have been implemented years ago.
    I can only assume that the nay-sayers still drive mechanical engines getting 3-4 mpg, pushing their square-nosed cabovers and living happily in the past.
    Paul Abelson, Technical Consultant
    formerly Senior Technical Editor (retired)
    Road King and Land Line Magazines
    Member, SAE, TMC, Truck Writers of North America
    CDL holder for 21 years

  11. Leave the mirrors, in winter those cameras get covered up with ice – slush-dirt.

    1. Paul, have you been in a truck that utilizes MirrorEye? you would be absolutely shocked at how well you can see through the cameras even when there’s rain, slush, snow, dirt, hail, whatever the case may be. I had the pleasure of riding in the Stoneridge truck that is currently using MirrorEye and I could see better in the rain through the cameras then i could see in any regular mirror.

      Not to mention i could see in blind spots i never knew existed….
      Also it improved fuel efficiency by 4%….