Are clear tail lamp lenses permitted?
No. Washington has adopted the Federal Motor Vehicle Safety Standard (FMVSS) 108 for all aftermarket lighting equipment. FMVSS 108 is very specific for tail/brake light lenses as well as front side marker light lenses. Most clear aftermarket lighting lack the required reflex reflectors and side marker lights. Using “red” bulbs in clear lenses is not acceptable as it does not meet FMVSS 108. All aftermarket lighting must have the same functionality as those originally installed. More information on FMVSS 108 may be viewed at http://fmvss108.tripod.com.
