Ohio Windshield Mounting Laws (2026 Guide)

Ohio permits dashcams, GPS units, and phone mounts on passenger car windshields under Ohio Revised Code 4513.24(B)(2), provided the device does not block the driver's sight lines to the road or highway signs. Commercial vehicles must mount devices within 8.5 inches of the upper windshield edge.

Ohio law controls what drivers can attach to or mount on their windshields. The primary statute is Ohio Revised Code Section 4513.24, which sets out the rules for windshield obstructions, electronic device placement, and windshield wiper requirements. Additional regulations in ORC 4513.241 and Ohio Administrative Code 4501-41-03 govern window tinting and sun screening materials.

This guide covers the current law as of 2026, including the April 2023 amendments that added electronic device exemptions and Ohio's hands-free driving law that took effect the same year.

Ohio Windshield Obstruction Law (ORC 4513.24)

Ohio Revised Code 4513.24(A) requires every motor vehicle driven on Ohio roads to have a windshield. Motorcycles and motorized bicycles are the only exceptions.

Division (B)(1) is the core obstruction rule. It prohibits driving any motor vehicle (other than a bus) with any "sign, poster, or other nontransparent material" on the front windshield, side wings, side windows, or rear windows. The law carves out two exceptions to this general ban:

• Legally required documents. Certificates or papers that the law requires you to display (such as inspection stickers or registration documents) are permitted.
• Small signs or decals. A sign, poster, or decal may be placed in the lower left or right corner of the windshield as long as it does not exceed 4 inches in height by 6 inches in width.

No sign, poster, or decal may be placed in the windshield in a way that conceals the vehicle identification number (VIN) when federal law requires the VIN to be readable through the windshield glass.

Electronic Device Exemptions

The April 2023 amendments to ORC 4513.24 added two subsections that specifically address electronic devices on the windshield. These provisions reflect the reality that modern drivers use GPS units, dashcams, toll transponders, and other technology that may need to be mounted on the windshield.

Passenger Vehicles (ORC 4513.24(B)(2))

For passenger cars, the obstruction ban in Division (B)(1) does not apply to an electronic device located in the front windshield, including an antenna, electronic tolling or other transponder, camera, directional navigation device, or other similar electronic device, if either of the following applies to the device:

1. Federal vehicle safety technology standard (Division (B)(2)(a)). The device is a "vehicle safety technology" as defined in 49 C.F.R. 393.5 and complies with 49 C.F.R. 393.60(e)(1)(ii).

2. General electronic device standard (Division (B)(2)(b)). The device does not restrict the vehicle operator's sight lines to the road and highway signs and signals, and it does not conceal the vehicle identification number.

The two branches are alternatives, not a checklist. A consumer GPS unit or dashcam ordinarily rests on the second branch, so the practical test for most drivers is whether the device blocks the view of the road or of traffic signs and signals and whether it covers the VIN. This exemption is broad: it covers GPS units, dashcams, E-ZPass transponders, radar detectors (to the extent they are windshield-mounted), and similar devices. There is no specific measurement requirement for passenger vehicles regarding where on the windshield the device must be placed.

Commercial Vehicles (ORC 4513.24(B)(3))

Division (B)(3) has the same two-branch structure as the passenger-car exemption. The obstruction ban does not apply to an electronic device in the front windshield of a commercial car if either of the following applies. The only substantive difference from (B)(2) is in the second branch, which adds an 8.5-inch mounting cap and drops the VIN condition.

1. Federal vehicle safety technology standard (Division (B)(3)(a)). The device qualifies as "vehicle safety technology" under 49 C.F.R. 393.5 and complies with the mounting requirements in 49 C.F.R. 393.60(e)(1)(ii). Under this federal rule, devices must be mounted no more than 8.5 inches (216 mm) below the upper edge of the windshield wiper sweep area and no more than 7 inches (175 mm) above the lower edge of the wiper sweep area. Vehicle safety technology includes fleet-related incident management systems, lane departure warning systems, forward collision warning systems, active cruise control systems, and transponders.

2. General electronic device standard (Division (B)(3)(b)). The device does not restrict the operator's sight lines to the road and highway signs and signals, and it is mounted not more than 8.5 inches below the upper edge of the windshield.

Commercial motor vehicle operators should mount devices in the upper portion of the windshield, within the 8.5-inch zone from the top, to stay clearly within the law.

GPS and Phone Mounts

Ohio law does not ban GPS units or phone mounts on the windshield by name. Under ORC 4513.24(B)(2), passenger vehicle drivers may mount a "directional navigation device" on the windshield as long as it does not obstruct their view of the road or highway signs and signals.

However, Ohio's hands-free driving law (ORC 4511.204), which took effect on April 4, 2023, adds an important layer of regulation. Under this law, drivers may not hold or physically support an electronic wireless communications device with any part of their body while operating a motor vehicle. The law permits using a device in a hands-free mode, including with technology that "physically or electronically integrates the device into the motor vehicle."

What This Means for Windshield Phone Mounts

A phone mounted in a cradle or holder on the windshield (or dashboard) satisfies the hands-free requirement because the driver is not holding the device. However, the driver may only interact with the phone using a single touch or swipe to activate, deactivate, or initiate a hands-free feature. Manually typing, scrolling, or entering information while driving is prohibited.

The safest approach is to mount your phone or GPS in a location that does not obstruct your forward view. Dashboard mounts are the most conservative option. If you use a windshield mount, position the device in a lower corner or near the rearview mirror where it minimizes obstruction.

Dashcam Rules

Ohio does not have a standalone dashcam statute. Dashcams fall under the electronic device exemption in ORC 4513.24(B)(2) for passenger vehicles and ORC 4513.24(B)(3) for commercial vehicles.

A dashcam is legal on the windshield of a passenger car in Ohio as long as it does not restrict the driver's sight lines to the road and highway signs and signals. For commercial vehicles, the dashcam must be mounted within 8.5 inches of the upper edge of the windshield.

The most common and legally safe mounting position for a dashcam is behind the rearview mirror, where the device captures the road ahead without entering the driver's primary field of vision.

Ohio is a one-party consent state for audio recording under ORC 2933.52. This means a dashcam that records audio inside the vehicle is legal as long as the person operating the dashcam is a party to the conversation being recorded. You do not need to notify passengers that audio is being recorded, though doing so is good practice.

Toll Transponders (E-ZPass)

E-ZPass transponders are explicitly covered by the electronic device exemption in ORC 4513.24(B)(2) and (B)(3), which list "electronic tolling or other transponder" as a permitted device. The Ohio Turnpike Authority requires E-ZPass transponders to be properly mounted on the windshield for the overhead antenna to read them. Holding the transponder up as you pass through a toll plaza will not reliably work.

Mount your E-ZPass transponder according to the manufacturer's instructions, typically on the inside of the windshield behind the rearview mirror or in the area the instructions specify. This placement complies with both the transponder's technical requirements and Ohio's windshield obstruction law.

Windshield Tinting Rules

Ohio Revised Code 4513.241 and Ohio Administrative Code 4501-41-03 set the rules for windshield tinting and sun screening materials.

Light Transmittance Requirements

The color condition is narrow: OAC 4501-41-03 bars red and yellow sunscreening only on the windshield (paragraph (A)(2)) and on the side windows immediately to the right or left of the driver (paragraph (A)(3)). Windows to the rear of the driver carry no color condition. Separately, paragraph (D) bars reflectorized (mirrored) materials on any window, including the windshield.

The AS-1 line is a marking on the windshield glass placed by the manufacturer, typically 5 to 6 inches from the top edge. Tinting above the AS-1 line is unrestricted, but tinting below it must allow at least 70% of light to pass through.

Labeling Requirements

All aftermarket sunscreening material installed on an Ohio vehicle must display a label in the lower left corner (as viewed from outside) showing the manufacturer's name and the percentage level of light transmission.

Medical Exemption

Ohio allows a medical exemption for darker window tinting under Ohio Administrative Code 4501-41-05. A physician licensed under ORC Chapter 4731 or an optometrist licensed under ORC Chapter 4725 must sign an affidavit stating that the driver has a physical condition requiring the installation of sunscreening material that would otherwise violate the law. The affidavit must be carried in the vehicle at all times. Qualifying conditions may include lupus, photosensitivity disorders, or other medical conditions that require protection from sunlight.

Windshield Condition Requirements

While Ohio does not have a statute specifically banning cracked or chipped windshields, ORC 4513.02 requires all motor vehicles to be maintained in "safe operating condition." Glass is among the items inspected under this statute.

A windshield crack or chip that impairs the driver's visibility can result in a citation under the general safety requirement. Law enforcement officers have discretion to determine whether windshield damage interferes with safe driving. Cracks in the driver's direct line of sight carry the highest enforcement risk.

Every motor vehicle must also be equipped with a windshield wiper system under ORC 4513.24(C). The wiper must be maintained in good working order and must be controllable by the vehicle operator.

Exemptions Summary

Penalties

Violating Ohio's windshield mounting or obstruction laws under ORC 4513.24 is classified as a minor misdemeanor. Under ORC 2929.28, a minor misdemeanor carries:

Illegal window tinting under ORC 4513.241 is also a minor misdemeanor with the same penalty structure.

Ohio's hands-free driving law (ORC 4511.204) carries separate, escalating penalties for using a device while driving:

Under ORC 4511.204(D)(2), a first-time offender may elect the distracted driving safety course instead of paying the fine and taking the two points, but written evidence of completion must reach the court within ninety days of the violation. Under ORC 4511.204(D)(1)(d), a violation committed in a posted construction zone carries a fine of two times the amount otherwise imposed.

A windshield-mounted device is not itself a violation, but interacting with that device beyond a single touch or swipe while driving could trigger a distracted driving citation.

Ohio's Hands-Free Law and Windshield Devices

Ohio's "Phones Down" law (ORC 4511.204) went into effect on April 4, 2023, with warnings issued through October 5, 2023, and full enforcement beginning after that date.

The law prohibits operating a motor vehicle while using, holding, or physically supporting an electronic wireless communications device with any part of your body. You may not hold your phone in your hand, place it in your lap, or prop it against any body part while driving.

What Is Still Allowed

• Using a device with a voice-operated or hands-free feature, activated with a single touch or swipe
• Using technology that physically or electronically integrates the device into the vehicle (such as a mount or cradle)
• Storing a device in a holster, harness, or article of clothing on your body
• Using a device while the vehicle is parked or stopped (such as at a red light, though the law's language on stopped vehicles is narrower than many drivers assume)

A windshield-mounted phone in a cradle is legal. Manually typing on that phone while driving is not.

Recent Changes (2023 to Present)

The most significant changes to Ohio's windshield-related laws occurred in 2023:

• ORC 4513.24 amended (effective April 3, 2023). The legislature added Divisions (B)(2) and (B)(3), which created explicit exemptions for electronic devices on passenger and commercial vehicle windshields. Before this amendment, the statute did not specifically address electronic devices, creating uncertainty about GPS units, dashcams, and transponders.

• ORC 4511.204 enacted (effective April 4, 2023). Ohio's hands-free driving law made distracted driving a primary offense. Officers may pull over a driver solely for using a handheld device, without needing to observe another traffic violation first.

No additional changes to ORC 4513.24, ORC 4513.241, or the related administrative code provisions have been enacted through the current 136th General Assembly session (2025-2026). HB 526, introduced in 2025, would require orange International Symbol of Access windshield placards but has not been enacted as of early 2026.

More Ohio Laws

• Ohio Recording Laws
• Ohio Lemon Law
• Ohio Hit and Run Laws
• Ohio Car Seat Laws
• Ohio Statute of Limitations

Frequently Asked Questions

Can I mount a GPS or phone on my windshield in Ohio?

Yes. Under ORC 4513.24(B)(2), electronic devices including directional navigation devices and similar technology are permitted on passenger car windshields as long as they do not restrict the driver's sight lines to the road and highway signs and signals and do not conceal the VIN. A device that qualifies as federal vehicle safety technology under 49 C.F.R. 393.5 is exempt on that basis alone. You must use the device hands-free under Ohio's Phones Down law (ORC 4511.204), meaning no holding the device and no manual input beyond a single touch or swipe.

Are dashcams legal on windshields in Ohio?

Yes. Dashcams are covered by the electronic device exemption in ORC 4513.24(B)(2) for passenger vehicles. The dashcam must not obstruct the driver's view of the road or highway signs. For commercial vehicles, the dashcam must be mounted within 8.5 inches of the upper edge of the windshield under ORC 4513.24(B)(3). Ohio is a one-party consent state for recording, so audio captured by a dashcam is legal when the operator is a party to any conversation recorded.

What is the fine for a windshield obstruction in Ohio?

A violation of ORC 4513.24 is a minor misdemeanor, punishable by a fine of up to $150. There is no jail time and no points assessed on the driver's license for this offense. Illegal window tinting under ORC 4513.241 carries the same penalty.

How dark can I tint my windshield in Ohio?

Under Ohio Administrative Code 4501-41-03, any sunscreening material applied to the windshield below the AS-1 line must allow at least 70% of light to pass through (plus or minus 3%). Tinting above the AS-1 line, which is typically the top 5 inches of the windshield, is not restricted. Red and yellow sunscreening is barred on the windshield and on the side windows immediately to the right or left of the driver; windows behind the driver carry no color condition. No window may carry reflectorized material. A medical exemption is available under OAC 4501-41-05 with a physician's or optometrist's affidavit.

Does Ohio's hands-free law affect windshield-mounted phones?

A phone mounted in a windshield cradle or holder is legal under Ohio's Phones Down law (ORC 4511.204). The law prohibits holding or supporting a device with your body, not mounting it on the vehicle. However, you may only interact with the mounted phone using a single touch or swipe to activate a hands-free feature. Manually typing, scrolling, or entering information while driving is illegal and can result in fines up to $150 for a first offense, escalating to $500 for a third or subsequent offense. A first-time offender may elect the distracted driving safety course under ORC 4511.991 in lieu of the fine and points, and a violation in a posted construction zone carries double the fine.