Hawaii Truck Mud Flap Law

What Hawaii makes you run

Hawaii does have a statewide rule: HRS 286-202.8 requires every commercial motor vehicle to run fenders, covers, flaps, or splash aprons that minimize rear spray, backed by a flat $50 fine. It sets no width or ground-clearance number. Counties add mud-and-spray-guard rules covering all vehicles (for example Hawaii County Code Sec. 24-105). Roadside, run a flap that covers the full tire and hangs low; enforcement is a correctable equipment stop. Match the county code where you drive.

Coverage and clearance

• Required: Yes
• Coverage: No statewide tread-width figure. The guard should cover the tire and knock down rear spray. Follow the county code where you run.
• Ground clearance: No statewide clearance or width dimension. HRS 286-202.8 requires commercial motor vehicles to run fenders, covers, flaps, or splash aprons that minimize rear spray, but sets no inch figure. Counties add mud-and-spray-guard rules for all vehicles (for example Hawaii County Code Sec. 24-105).
• Fine: State statute (HRS 286-202.8) sets a flat $50 fine for commercial vehicles. County equipment/traffic violations are typically correctable and low-dollar.

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