Strictest States for Wheel & Tire Protrusion (2026)
Start with the fact that surprises almost everyone who researches this: no state sets an inch-based limit on how far your tires may stick out. Not one. The widely repeated "you get 2 inches" and "6 inches maximum" figures trace back to cargo load-projection statutes, which govern lumber hanging off a flatbed — not wheel offset.
What states actually regulate is coverage and spray. The strict ones require your fenders to cover the tire; the lenient ones just want water thrown off the tread to land on the road instead of the windshield behind you. Thirty states have no wheel-protrusion rule at all.
We re-verified all fifty against statute, administrative code, and state inspection manuals in August 2026. Here are the ten that actually constrain a wide-tire setup.
1. New Jersey - The Only Outright Ban
Wheel & Tire Protrusion in New Jersey
New Jersey is the one state that says it plainly: tire tread may not protrude beyond the fenders, and fenders must cover the width of the tire tread. Everywhere else you are arguing about coverage geometry or spray; here the rule is a flat prohibition. The saving grace is that flares count — you may add fender flaps or flares to provide the needed coverage, so a wide setup is legal if you widen the bodywork to match.
2. Hawaii - Coverage Measured in Degrees
Wheel & Tire Protrusion in Hawaii
Hawaii's safety inspection rejects a vehicle unless the fenders cover the entire width of the tire tread viewed from above and cover the tire from vertical to 75 degrees rearward. That second half is what catches people: a flare wide enough to pass the overhead test can still fail if it does not extend far enough back over the tire.
3. Vermont - Removing a Fender Fails Inspection
Wheel & Tire Protrusion in Vermont
Vermont fails a vehicle if any fender has been removed, or if a fender no longer covers the tread portion of the tire. Modified vehicles face the stricter geometric test — full tread width, from 15 degrees forward to 75 degrees rearward of the wheel centerline. The rule lives in the state inspection manual rather than the traffic statute, which is why it is missing from most comparison charts.
4. Maryland - A Geometric Test at Inspection
Wheel & Tire Protrusion in Maryland
Maryland measures coverage rather than protrusion, and measures it precisely. Fenders must extend outward far enough to cover the top of the wheel and tire, rear fenders must reach down to the wheel's horizontal centerline, and front fenders must extend forward to within 45 degrees of that centerline. Meet the geometry and your offset is not the state's concern.
5. North Dakota - Strict Only If You've Modified
Wheel & Tire Protrusion in North Dakota
North Dakota has no fender requirement at all for a stock vehicle — but a constructed, reconstructed, or modified vehicle must carry fenders covering the entire tire tread width from 15 degrees forward to 75 degrees rearward of the centerline. The tire may never contact the body, fender, or chassis. Modify the suspension and you move yourself into the strict tier.
6. Idaho - Full Width, Within 20 Inches of the Road
Wheel & Tire Protrusion in Idaho
Idaho requires fenders or covers over all wheels on every motor vehicle, extending the full width from a point above and forward of the tire center, over and behind the wheel, reaching down to within 20 inches of the road. Trucks, buses, and trailers get a tighter 10-inch figure.
7. Oregon - Type III Fenders on Every Axle
Wheel & Tire Protrusion in Oregon
Oregon specifies the hardware by type. A passenger car needs Type III fenders or mudguards on each axle, running the full width over the tire from above and forward of the tire center down to within 27 inches of the highway.
8. Pennsylvania - Original Equipment or Equivalent
Wheel & Tire Protrusion in Pennsylvania
Pennsylvania requires fenders "of a type used as original equipment," and the tire may not contact the body, fenders, or chassis. Because it is enforced at annual inspection rather than roadside, it tends to be applied consistently.
9. Rhode Island - Flaps Are the Price of Sticking Out
Wheel & Tire Protrusion in Rhode Island
Rhode Island addresses protrusion directly and then permits it conditionally: no passenger vehicle may run with tires extending beyond the fenders or body unless it also has flaps or suitable guards reducing spray to the rear and sides. Front wheels must be covered regardless.
10. Washington - As Wide as the Tire, Down to the Axle
Wheel & Tire Protrusion in Washington
Washington requires fenders, covers, flaps, or splash aprons adequate to minimize rear spray, and puts numbers on the device rather than the tire: it must be at least as wide as the tire behind it and extend downward at least to the center of the axle.
The Pattern Worth Understanding
Ten states here, and not one of them measures your wheel offset. Even the strictest — New Jersey — is really a coverage rule you can satisfy with flares.
That matters for how you plan a build. In most of the country the compliant path to a wide, aggressive stance is not a narrower wheel; it is wider bodywork. Louisiana's statute goes as far as naming fender flares explicitly as an acceptable option, and Massachusetts expressly permits tires to extend past the fenders as long as flaps or guards are fitted.
The states most likely to catch you out are the inspection states — Hawaii, Vermont, Maryland, Pennsylvania — where the rule is applied with a tape measure once a year rather than at an officer's discretion.
For exact limits and statute citations, get your compliance report.
Every figure on this page was verified against primary sources — statute text, administrative code, and state inspection manuals — in August 2026. Local ordinances may add requirements beyond state law.