US lawDelawareStatutesTitle 21Chapter 43Subchapter I430121 Del. C. § 4301Hard rubber tires.Last amended: 1929Year: 2026Length: 34 wordsOfficial source Every solid rubber tire on a vehicle moved on any highway shall have rubber at least 1 inch thick above the edge of the flange of the entire periphery on its entire traction surface.Next21 Del. C. § 4302