Windshield Mounting Restrictions by State (2026 Guide)
Windshield mounting rules vary by state across the United States. Many states prohibit any device that obstructs the driver's clear view, while others allow small GPS or navigation devices only in specific corner zones or behind the rearview mirror. Dashboard and vent-clip mounts are the safest legal option in every state.
Windshield mounting laws determine what devices, stickers, and materials you can legally attach to your vehicle's windshield. Every state has regulations, but they vary dramatically in what they allow, where devices can be placed, and how strictly the rules are enforced.
This guide links to detailed state-by-state pages covering the specific statutes, placement zones, penalties, exemptions, and how each state's hands-free driving law interacts with windshield mounting restrictions.
Windshield Mounting Laws by State
Select your state for a complete guide to windshield mounting rules, GPS and phone mount legality, dashcam placement, tinting restrictions, and penalties.
Frequently Asked Questions
Can I mount my phone on my windshield?
It depends on the state. Some states like California and Arizona allow devices in designated windshield zones (typically a 5-inch or 7-inch square in the lower corners). Others like Pennsylvania and D.C. effectively prohibit all windshield mounts. Dashboard and vent mounts are the safest legal option in every state.
Are dashcams legal on windshields?
Dashcams are legal in all 50 states, but where you can mount them varies. Most states allow dashcams behind the rearview mirror or in the lower corners if they do not obstruct the driver's view. A few states like Pennsylvania technically restrict all non-official items on the windshield.
What is the safest place to mount a GPS or phone?
A dashboard mount or vent-clip mount is the safest legal option in every state. These comply with both windshield obstruction laws and hands-free driving requirements without attaching anything to the windshield glass.
Which states are the most restrictive?
Pennsylvania, D.C., New Jersey, Rhode Island, and North Dakota are among the most restrictive. Pennsylvania uses a whitelist approach where only officially required stickers are permitted. D.C. has a blanket ban on all windshield-mounted objects. Rhode Island and New Jersey require 70% light transmittance with no device exemptions.
Which states are the most permissive?
Ohio explicitly allows GPS devices and electronic equipment on windshields. California has the most detailed framework with specific 5-inch and 7-inch mounting zones. Georgia's law explicitly permits device mounts. Florida exempts GPS devices and toll transponders by name.