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PDFWAC 204-21-090

Auxiliary driving lamps.

Auxiliary driving lamps must:
(1) Meet SAE Standard J581.
(2) Be white in color.
(3) Provide illumination forward the vehicle.
(4) Be wired so that the taillights are lighted whenever the driving lamps are lighted. If driving lamps are not wired to operate only with headlamp high beams, a separate switch and indicator lamp must be provided to operate the driving lamps.
(5) Be aimed with the center of the high intensity zone on a vertical line straight ahead of the lamp center and at the level of the lamp center.
(6) Not be used alone in lieu of headlamps, but may be used to supplement the upper beam of a standard headlight system as specified in RCW 46.37.220, and may only be used to supplement the upper beam of a standard headlamp system.
[Statutory Authority: RCW 46.37.005 and 46.37.320. WSR 08-19-104, ยง 204-21-090, filed 9/17/08, effective 10/18/08.]
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