(1) The enhancement of a lamp, reflective machine or various other motor automobile equipment need to not dilute the effectiveness of lighting equipment required by 49 C.F.R. Component 571.108 or chapter 46.37 RCW.

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(ii) incorporate any kind of letter, number, sign, price or mix thereof through an eye level brake light conference the requirements of 49 C.F.R. Component 571.108 (FMVSS 108). No function other than red reflex reflectors will certainly be linked in eye level brake lights.
(iii) have actually a lighted or electrically/mechanically powered sign or article board enabling adjust or movement of any type of displayed post to be shown or affixed come the vehicle. Except:
(A) Vehicles the are supplied in conjunction through officially sanctioned or funded motor car traffic regulate or motion may display lighted or electrically powered signs to help in the efficient manage of traffic motion on publicly roadways. The signs must it is in designed, worded, and also located to border misinterpretation and confusion through the motoring public.
(B) electric signs may be unitized to determine taxicabs and also the destinations the mass transportation vehicles. These indicators must not contain any commercial or an individual message and also must it is in designed, worded, and located so the it is plainly differentiated indigenous other required motor car lights.
(b) If a car is not in motion and also parked on private property, the car may use aftermarket lighting except as outlined under RCW 46.37.180.
(c) This section is not intended to prohibit a scrolling sign noted that the scrolling authorize must:
(i) Be powered by an external source or in a way which does not cause the required devices on the automobile to be out of compliance through 49 C.F.R. Component 571, chapter 46.37 RCW or title 204 WAC.
(2) Pursuant to title 49 C.F.R. Part 571.108, the enhancement of an aftermarket style ornament or other function such together tinted plastic glass covers, a grille or slotted covers should not be put in prior of the headlamp lens, or in front of any type of other lighting tools installed on engine vehicles which dilute the efficiency of lighting tools required under 49 C.F.R. Part 571.108 (FMVSS 108) or chapter 46.37 RCW. Except:
(b) Headlamp wipers might be offered in prior of the lens provided that the headlamp system is designed come conform to every ubraintv-jp.comlicable photometric requirements in 49 C.F.R. Component 571.108 (FMVSS 108) through the wiper quit in any kind of position in front of the lens.

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(c) A cycle rack might be mounted on the front of a municipal transit auto (as characterized under RCW 46.04.355) detailed that even with the bike rack installed, loaded or unloaded with bicycles, the headlight device still conforms through all ubraintv-jp.comlicable photometric needs in 49 C.F.R. Component 571.108 (FMVSS 108).