Interpretation ID: nht71-2.48

DATE: 05/12/71

FROM: AUTHOR UNAVAILABLE; L. R. Schneider; NHTSA

TO: Mercedes-Benz of North America, Inc.

TITLE: FMVSS INTERPRETATION

TEXT: This is in reply to your letter of May 3 asking for confirmation of your understanding with Mr. Vinson of my staff that the "optical horn" lighting feature is not prohibited by paragraph S4.6(b) of Motor Vehicle Safety Standard No. 108.

Paragraph S4.6(b) which states in part that "means may be provided to flash headlamps . . . for signaling purposes" allows the use of an automatic device for headlamp flashing, and it follows that a non-automatic system, such as the "optical horn" incorporates, is also permissible.