Wash. Rev. Code § 46.37.539
Every motorcycle and every motor-driven cycle shall also comply with the requirements and limitations of: RCW 46.37.380 on horns and warning devices; RCW 46.37.390 on mufflers and prevention of noise; RCW 46.37.400 on mirrors; and RCW 46.37.420 on tires.
[ 1977 ex.s. c 355 s 53.]
Rules of court:Monetary penalty schedule—IRLJ 6.2.
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.