"Tandem axle" means any two or more consecutive axles whose centers are less than seven feet apart.
RCW 46.04.582
Tandem axle.
1988 c 6 s 1; 1979 ex.s. c 149 s 2.
Official source: Washington State Legislature. Reproduced from public-domain Washington statutes; confirm against the official source for the current text. Not legal advice.