Tandem axle.

RCW 46.04.582
in effect
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"Tandem axle" means any two or more consecutive axles whose centers are less than seven feet apart. "Tandem axle" means any two or more consecutive axles whose centers are less than seven feet apart.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=46.04&full=trueFetched: 6/29/2026

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