Interpretation ID: aiam4394
Jr.
8152 Ladoga Drive
Jacksonville
FL 32217;
Dear Mr. Pape: This is in reply to your letter of August 22, 1987, to Taylor Vinson o this office, enclosing a copy of your letter to George Walton of AAMVA. In that letter you have asked three questions with reference to the center highmounted stop lamp required by Federal Motor Vehicle Safety Standard No. 108, *Lamps, Reflective Devices, and Associated Equipment*, to which you have asked that we reply.; Your first question is 'May one word be introduced on the brake light? Standard No. 108 prohibits combining the center highmounted stop lamp with any other lamp, or with any reflective device. It does not prohibit the addition of one or more words to the lens. However, there are basic requirements that the lamp must meet, and the word or words must not prevent the lamp from meeting them. Specifically, the effective projected luminous area of the lens must not be less than 4 1/2 square inches, and the lamp must meet specified candela maxima and minima at 13 discrete test points.; Your second area of interest is the color red. You have asked whethe it is a Federal requirement for all brake lamps, whether other colors may be substituted, and whether the color red may be adjusted to a lighter hue. Standard No. 108 requires all stop lamps to be red in color. This color is defined in SAE Standard J578c *Color Specification for Electric Signal Lighting Devices*, February 1977, expressing chromaticity coordinates according to the CIE (1931) standard colorimetric system. Red is rather narrowly defined, and falls with the y coordinates, 0.33 (yellow boundary) and 0.98 (purple boundary). Red is not acceptable if its is less saturated (paler), yellower, or bluer than the limit standards. Thus red could not be adjusted beyond the prescribed limits. In our opinion, the 'soft pink' or 'hot pink' that you believe is desirable would be beyond those limits. No color other than red is permitted for stop lamps.; Your final area of interest is whether one should consider marketing lamp with the features you have indicated, and whether there are 'hidden directives which would restrict or prohibit such marketing.' Under assumption that your lamp would not comply with the color requirements of Standard No. 108, we must advise you that a noncomplying lamp could not be sold as original equipment for passenger cars, or as a replacement for center high mounted stop lamps on passenger cars manufactured on or after September 1, 1985. Federal law would not prohibit its sale for use on vehicles other than these, but the lamp would be subject to the laws of any State in which it would be sold and used.; I hope that this answers your questions. Sincerely, Erika Z. Jones, Chief Counsel