Interpretation ID: 1983-3.27

TYPE: INTERPRETATION-NHTSA

DATE: 11/23/83

FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA

TO: Mr. Eddie Wayne

TITLE: FMVSS INTERPRETATION

TEXT:

NOA-30

Mr. Eddie Wayne 4306 Emmet Drive Erie, Pennsylvania 16511

Dear Mr. Wayne:

Thank you for your recent note asking if motorcycle headlamps could not be required to have a blue or green lens across the top portion, so that cycles could be distinguished from a four-wheeled motor vehicle with only one headlamp.

This is an interesting suggestion. However, we would not wish to impose a requirement that would interfere with the effectiveness of the single headlamp with which most motorcycles are equipped. The other side of the coin is marking the four-wheeled vehicle so that it is distinguishable from a motorcycle when one of its headlamps is out. We currently require passenger cars, light trucks, and others, to have amber or white parking lamps and amber front side marker lamps that are illuminated when the headlamps are on. While these lights may not be as readily visible from greater distances as a headlamp, nevertheless their presence on a vehicle does help to distinguish that vehicle from a motorcycle at night, when a headlamp is missing.

Thank you for your interest in safety.

Sincerely,

Frank Berndt Chief Counsel