Interpretation ID: 8111
President
Sys Tek Corporation
444 N. Zachary, Suite 111
Moorpark, CA 93021
Dear Mr. Upham:
This responds to your letter of December 9, 1992, with respect to whether a "portable lighted message display using L.E.D. technology" is permissible under Federal law. The product would be sold in the aftermarket. As you indicate, "[i]t will be either battery powered or it will be powered using the vehicle power source via cigarette lighter or directly to the car's electrical harness." It will be installed in either the side rear or rear window.
We assume that battery-powered devices, and those activated through the cigarette lighter, are so simple that the vehicle owner can install and use the device without resorting to the assistance of others. Under this circumstance, there is no restriction that applies to this device under the laws administered by this agency. Nevertheless, the device may be subject to restrictions imposed by a State in which it is operated.
However, if attaching the device to the car's electrical harness is a task that may be performed by a person other than the vehicle owner, a different consideration applies. A manufacturer, dealer, distributor, or motor vehicle repair business may not install the device if it renders inoperative, in whole or in part, any device or element of design installed in accordance with a Federal motor vehicle safety standard. Examples of equipment added pursuant to a Federal standard and that could be affected by the sign board are the stop lamps, both center highmounted and conventional, and the inside rear view mirror. I enclose a copy of an interpretation of the agency dated August 17, 1989, to Mr. Alan S. Eldahr, and call your attention to our views on impairment by message boards expressed on the second page. This letter also provides the address of an organization that you may consult on applicable State laws.
Installation of the message board in a side rear window by a manufacturer, distributor, dealer, or motor vehicle repair business would appear permissible. The only required side lighting equipment are front and rear lamps and reflectors, intended to mark the extremities of the vehicles, and we do not believe that their function would be negatively affected by installation of the message board.
Sincerely,
Paul Jackson Rice Chief Counsel
Enclosure ref:108 d.12/28/92