Complete Guide to Vehicle Modification Laws in North Dakota
North Dakota offers vehicle enthusiasts a relatively permissive environment for modifications, with many popular modifications being legal or having minimal restrictions. This comprehensive guide breaks down the current legal status of common vehicle modifications in the Peace Garden State.
Window Tint
Status: Legal with Restrictions
Window Tint in North Dakota regulations require specific light transmission levels for front side windows, while rear windows have no darkness restrictions. You can go as dark as you want on your rear windows and back glass, but front side windows must remain relatively light to maintain visibility and safety standards. Get the exact limits, statute citations, and a printable PDF in your compliance report.
Exhaust Modifications
Status: Conditional
North Dakota sets no statewide decibel limit for passenger cars. A muffler in good working order is required, exhaust may not produce excessive or unusual noise, and cutouts or bypasses are prohibited. See Exhaust Noise in North Dakota for the full breakdown. Get the exact limits, statute citations, and a printable PDF in your compliance report.
Suspension Modifications
Status: Conditional
North Dakota caps body height at 42 inches measured from level ground to the cargo-area floor, and bumper height at 27 inches measured to the highest point on the bottom of the bumper. See Lift Kits in North Dakota for the full breakdown. Get the exact limits, statute citations, and a printable PDF in your compliance report.
Lighting Modifications
Status: Conditional
North Dakota requires no cover but bars lighting any auxiliary driving lamp mounted below 16 or above 42 inches while on a highway — which covers most roof-mounted bars. See Light Bars & LED Lighting in North Dakota for the full breakdown. Get the exact limits, statute citations, and a printable PDF in your compliance report.
Wheels and Tires
Status: Conditional
North Dakota has no fender requirement for stock vehicles, but constructed, reconstructed, or modified vehicles must have fenders covering the entire tire tread width from 15 degrees forward to 75 degrees rearward of the wheel centerline, and the tire may never contact the body, fender, or chassis. See Wheel & Tire Protrusion in North Dakota for the full breakdown. Get the exact limits, statute citations, and a printable PDF in your compliance report.
Cosmetic Modifications
Status: Legal with Conditions
Window Banners in North Dakota don't appear to be regulated by specific state statutes, while License Plate Frames in North Dakota are legal as long as they don't obscure important information like plate numbers or registration stickers. This allows for personalization while maintaining law enforcement's ability to identify vehicles. Get the exact limits, statute citations, and a printable PDF in your compliance report.
The Bottom Line
North Dakota is quite friendly to vehicle enthusiasts, with most popular modifications being legal or having minimal restrictions. The state's approach appears to focus on safety rather than restricting personal expression through vehicle modifications, making it an excellent state for car and truck enthusiasts who want to customize their rides.
Whether you're building a show car, a weekend off-roader, or just want to add some personal touches to your daily driver, North Dakota's modification-friendly laws provide a solid foundation for your project. For a personalized compliance report with exact limits, statute citations, and a printable PDF you can keep in your glovebox, check out our compliance report.
Every figure in this guide was verified against primary sources — statute text, administrative code, and state inspection manuals — in August 2026. Laws change and local ordinances may add requirements beyond state law, so verify with local authorities before modifying your vehicle. This is not legal advice.