Interpretation ID: aiam2830
President
Christy Electronics
Inc.
51 East 42nd Street
New York
NY 10017;
Dear Mr. Caristia: Our regional office in White Plains has forwarded your letter of Ma 29, 1978, for reply.; You have requested 'approval' of your vehicle lighting system whic flashes the stop lamps at a rate three times per second when the brake pedal is depressed.; We do not 'approve' lighting devices but we do provide interpretation whether such devices are permissible under Federal lighting requirements. As an item of original vehicle equipment your device would appear to be prohibited by paragraph S4.6 of Federal Motor Vehicle Safety Standard No. 108. This paragraph requires that all lamps be steady - burning in operation except for turn signal lamps, hazard warning, signal lamps, and school bus warning lamps, and it also allows headlamps and side marker lamps to be flashed for signalling purposes.; As an aftermarket device, however, it would be subject to regulation b the individual States. We are forwarding a copy of your letter to the American Association of Motor Vehicle Administrators for an opinion on this point.; We appreciate your interest in safety. Sincerely, Joseph J. Levin, Jr., Chief Counsel