Nevada Truck Mud Flap Law
Nevada's rule is short and blunt. Any truck, truck-tractor, trailer, or semitrailer rated 26,000 lb GVWR or more must run mudguards behind its rear wheels (NRS 484D.420). The statute gives no width or ground-clearance number, so an officer judges whether the guard actually knocks down spray. Since Nevada's 2023 traffic-law overhaul it is a civil infraction, usually correctable. Lighter rigs under 26,000 lb fall outside this section but still owe the general no-spray duty.
A detail here is flagged medium confidence — confirm with the state statute before you rely on it.
What Nevada makes you run
Nevada's rule is short and blunt. Any truck, truck-tractor, trailer, or semitrailer rated 26,000 lb GVWR or more must run mudguards behind its rear wheels (NRS 484D.420). The statute gives no width or ground-clearance number, so an officer judges whether the guard actually knocks down spray. Since Nevada's 2023 traffic-law overhaul it is a civil infraction, usually correctable. Lighter rigs under 26,000 lb fall outside this section but still owe the general no-spray duty.
Coverage and clearance
- Required: Yes
- Coverage: Statute says only 'mudguards suspended behind its rear wheels'; no tread-width figure is given. Cover the full tire to stay clear.
- Ground clearance: No set clearance or width number in the statute. Any truck, truck-tractor, trailer, or combo rated 26,000 lb GVWR or more must carry mudguards suspended behind the rear wheels (NRS 484D.420).
- Fine: Civil traffic infraction since Nevada's 2023 decriminalization of minor traffic offenses; fine typically up to a few hundred dollars, often correctable.
Nevada Mud Flap FAQ
Are mud flaps required on trucks in Nevada?
How low can mud flaps hang in Nevada?
What is the mud-flap fine in Nevada?
Reference information for planning, not legal advice. Traffic laws change and this can be out of date, so always confirm the current statute and obey posted signs before you rely on it. Last reviewed July 2026. Source: https://nevada.public.law/statutes/nrs_484d.420. See our Terms & Disclaimer.
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