Wyoming Truck Mud Flap Law
Wyoming is one of eight states with no mud-flap or splash-guard law on the books. There is no width number, no clearance number, and no dimensional standard for a state trooper to measure against (confirmed by the NTEA state-by-state guide). You won't catch a flap-specific ticket here. But the moment you cross into Utah, Montana, or Colorado, their rules bind your truck, so keep full-tread flaps within a few inches of the road anyway.
A detail here is flagged medium confidence — confirm with the state statute before you rely on it.
What Wyoming makes you run
Wyoming is one of eight states with no mud-flap or splash-guard law on the books. There is no width number, no clearance number, and no dimensional standard for a state trooper to measure against (confirmed by the NTEA state-by-state guide). You won't catch a flap-specific ticket here. But the moment you cross into Utah, Montana, or Colorado, their rules bind your truck, so keep full-tread flaps within a few inches of the road anyway.
Coverage and clearance
- Required: No specific statute
- Coverage: No width or tread rule. Wyoming has no mud-flap statute.
- Ground clearance: no set clearance
- Fine: No flap-specific fine; there is no flap statute to violate. Full-tread coverage is still the smart target for spray.
Wyoming Mud Flap FAQ
Are mud flaps required on trucks in Wyoming?
How low can mud flaps hang in Wyoming?
What is the mud-flap fine in Wyoming?
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 Traffic laws change and this can be out of date, so always confirm the current statute and obey posted signs before you rely on it.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://www.ntea.com/data/guide/uscanada-mud-flap-requirements-guide. See our Terms & Disclaimer.
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