Solid tire.

RCW 46.04.550
in effect
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"Solid tire" includes every tire of rubber or other resilient material which does not depend upon inflation with compressed air for the support of the load thereon. "Solid tire" includes every tire of rubber or other resilient material which does not depend upon inflation with compressed air for the support of the load thereon.
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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