"Axle" means structure or structures in the same or approximately the same transverse plane with a vehicle supported by wheels and on which or with which such wheels revolve.
RCW 46.04.060
Axle.
1961 c 12 s 46.04.060
Official source: Washington State Legislature. Reproduced from public-domain Washington statutes; confirm against the official source for the current text. Not legal advice.