TwinTurbo.NET: Nissan 300ZX forum - Federal DOT regulations require it on any pass. car built
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Subject Federal DOT regulations require it on any pass. car built
     
Posted by YugoBernie (NoVA) on October 09, 2007 at 11:12 PM
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In Reply To illegal to shave the third brake light? posted by 300zx1717 on October 09, 2007 at 08:21 PM
     
Message after 1986.

[ http://en.wikipedia.org/wiki/Automotive_lighting#Centre_High_Mount_Stop_Lamp_.28CHMSL.29 ]

[edit] Centre High Mount Stop Lamp (CHMSL)
In North America since 1986, in Australia since 1990, and in Europe since 1998, a central brake lamp, mounted higher than the vehicle's left and right brake lamps and called a Centre High Mount Stop Lamp (CHMSL), is also required. The CHMSL (pronounced ['t??mz?l]) is also sometimes referred to as the centre brake lamp, 3rd brake Lamp, eye-level brake lamp, safety brake lamp, cyclops or high-level brake lamp. These lamps usually consist of a row of LEDs or small filament bulbs.

Rationale
The stop lamps on vehicles are traditionally placed in the same housing as the tail lights and turn signals. The CHMSL, which must illuminate steadily and is not permitted to flash, provides a deceleration warning to following drivers, whose view of the braking vehicle's regular stop lamps is blocked by interceding vehicles. The CHMSL also helps to disambiguate brake vs. turn signal messages in North America, where red rear turn signals identical in appearance to brake lamps are permitted.


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1995 Nissan 300ZX TwinTurbo in Cobalt Green
1997 Nissan 240SX SE in Ultra Red (some assembly required)
1995 Nissan Pick-Up XE in Super Black
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