District of Columbia Windshield Mounting Laws

The District of Columbia does not ban objects from the windshield outright. The regulation that once did, 18 DCMR 2213.7, was repealed by the NEAR Act of 2016 and the official DCMR text now reads "[REPEALED]." What survives is the general obstruction test in 18 DCMR 2213.1, so a dashcam, GPS unit, or phone mount is judged by whether it blocks a significant portion of the driver's view.

The District of Columbia is widely described as banning every windshield-mounted device. That description is out of date. The provision it rests on was repealed in 2016, and the rule that replaced it turns on whether a device actually obstructs the driver's view rather than on where it is attached. Alongside that, D.C. still enforces a strict 70% visible light transmittance (VLT) requirement and a comprehensive hands-free driving law.

This guide covers every regulation that affects windshield mounting in the District, including what the obstruction law actually says today, tint requirements, hands-free rules, penalties, exemptions, and how these laws interact.

D.C. Windshield Obstruction Law (18 DCMR 2213)

The regulation governing what can and cannot be placed on a windshield in the District of Columbia is 18 DCMR Section 2213, titled "Obstruction of Driver's View or Driving Mechanism."

The General Rule

18 DCMR 2213.1 is the operative provision. In the current codified text it reads:

No person shall drive a vehicle with any object in any position that obstructs a significant portion of the view of the driver to the front or sides of the vehicle, or interferes with the driver's control over the driving mechanism of the vehicle.

Two things follow from that wording. First, the standard is obstruction of a significant portion of the view, which is a question of fact about the particular device and where it sits. Second, the rule says nothing about attachment. It does not matter whether an object is stuck to the glass, hanging from the mirror, or sitting on the dashboard; what matters is what it blocks.

There is one wrinkle worth knowing. D.C. Law 21-125 Section 301(a) rewrote 2213.1 to protect the driver's view "to the front, sides, or back of the vehicle." The codified text published by the D.C. Office of Documents still reads "to the front or sides," an apparent codification lag. The broader version is the safer assumption for a driver.

The Repealed Blanket Ban

D.C. formerly had a much stricter rule. 18 DCMR 2213.7 prohibited any object attached to or suspended from the windshield, the rear window, the front side windows, the rearview mirror, or their frames, and 2213.8 was a companion provision.

Both were repealed. D.C. Law 21-125, the Neighborhood Engagement Achieves Results (NEAR) Act of 2016, struck them at Section 301, effective June 30, 2016. The change was carried into the DCMR effective October 8, 2016, and the official current text of both subsections now reads simply "[REPEALED]."

The repeal was deliberate policy, not an oversight. It came in a package aimed at reducing minor-equipment offenses that functioned as grounds for pretextual traffic stops. Removing the per se attachment offense removed that basis for a stop.

What This Means in Practice

Many published guides still contrast D.C. with states like California, which allows a 7-inch square in the lower corner of the windshield, or Arkansas, which permits devices within 4.5 inches of the bottom, and conclude that D.C. is stricter because it carves out no permitted zone. That comparison no longer holds, and it points the wrong way.

D.C. does not carve out a permitted zone because it no longer has an object-specific windshield prohibition to carve an exception out of. A state with a measured safe-harbor zone tells you exactly where a mount is lawful. D.C. instead asks a general question in every case: does this object obstruct a significant portion of the view? A small dash-mounted phone holder or a compact dashcam tucked beside the rearview mirror obstructs very little and is not prohibited by 2213.1.

That cuts the other way for large objects. A wide tablet-sized screen in the driver's sight line, or something dangling in the middle of the windshield, can violate 2213.1 even though nothing is "attached" in the old sense.

Windshield Condition Requirements (18 DCMR 731)

18 DCMR Section 731 sets out the physical condition requirements for windshields and mirrors on vehicles operated in the District.

Key Requirements

A windshield with cracks or damage that impairs the driver's view is a separate, citable violation from the obstruction rules. While D.C. does not require annual safety inspections for most private vehicles, officers can issue citations for a damaged windshield during any traffic encounter.

The One Windshield-Specific Rule That Survived

18 DCMR 731.1 is worth reading closely, because it is the closest thing D.C. still has to a windshield-attachment rule. It bars driving with "any sign, poster, or other non-transparent material upon the front windshield, sidewings, or side or rear windows," other than a sticker authorized by the Mayor, the Public Service Commission, the Joint Board, or the Director.

Its plain target is flat material applied to the glass, such as signs, posters, and decals. Whether "other non-transparent material" reaches a suction-cup phone cradle or a dashcam body is an open question that the text does not settle, and we are not aware of D.C. case law resolving it. It is a reason to prefer a low, compact mount, but it is not a stated ban on devices.

Window Tint and VLT Requirements (DC Code 50-2207.02)

DC Code Section 50-2207.02 governs window tinting across all vehicle windows, including the windshield. D.C. requires 70% VLT on the windshield, making it one of the strictest jurisdictions in the nation for windshield tinting.

VLT Standards by Vehicle Type

Windshield Tint Strip Exception

The law allows a tint strip above the AS-1 line or within 5 inches from the top of the windshield with lower light transmittance. This is the only area of the windshield where darker tinting is permitted. Below that line, the full 70% VLT requirement applies.

The AS-1 line is a marking typically found on the windshield glass itself, placed by the manufacturer to indicate the boundary for factory tinting compliance with federal safety standards.

Exempt Vehicles

The tint law does not apply to:

• Limousines
• Ambulances
• Buses
• Hearses
• Church-owned vehicles
• Official government vehicles
• Vehicles with factory-installed tinting that meets federal standards
• Vehicles with approved medical exemptions

Medical Exemption Process

Drivers or vehicle owners with medical conditions requiring additional protection from sunlight can apply for a Vehicle Tint Waiver through the DC DMV. The process requires:

1. A letter on official letterhead from a physician, physician assistant, ophthalmologist, or optometrist
2. The letter must certify that protection from sunlight or bright lights is medically necessary
3. The letter must identify the specific medical condition
4. The completed Vehicle Tint Waiver Request Form must be submitted to the DC DMV Inspection Station
5. The waiver must be maintained in the vehicle at all times

Making a false statement on the waiver form is a violation of DC law (DC Official Code 22-2405), punishable by a fine of up to $1,000 or 180 days imprisonment or both.

GPS and Phone Mounts

Because 18 DCMR 2213.7 was repealed, there is no D.C. rule that makes a suction-cup GPS or phone mount unlawful simply because it touches the windshield. The question under 18 DCMR 2213.1 is whether the mount and the device in it obstruct a significant portion of your view to the front or sides.

In practice that favors a mount that is small, low, and out of the sight line: the bottom corner on the driver's side, the far bottom corner on the passenger side, or immediately beside or below the rearview mirror, where the mirror already blocks the view. A phone parked in the middle of the glass at eye level is the arrangement most likely to draw a citation.

Lower-Risk Alternatives

None of the following is legally required, but each keeps a device well clear of the obstruction test:

• Dashboard mounts that attach to the dash surface or use weighted, non-permanent bases
• Vent clip mounts that attach to the vehicle's air conditioning vents
• Console mounts that attach to the center console or cup holder area
• CD slot mounts for vehicles that still have a disc player
• Built-in vehicle navigation systems or Android Auto / Apple CarPlay integration

Whatever the mounting solution, the driver must still operate the device hands-free to comply with DC Code 50-1731.04. That requirement is about handling the phone, not about where the phone sits.

Dashcam Placement

D.C. does not have a specific dashcam statute, and since the 2016 repeal it has no rule that prohibits attaching a dashcam to the windshield. A windshield-mounted dashcam is lawful in the District so long as it does not obstruct a significant portion of the driver's view under 18 DCMR 2213.1.

The standard placement, tucked behind or immediately beside the rearview mirror, sits in an area the mirror already occupies and is very unlikely to meet the obstruction test. A dashboard mount is an equally good option, but it is a matter of preference rather than compliance with a mandatory rule.

Hands-Free Driving Law (DC Code 50-1731)

D.C. was one of the first jurisdictions in the country to enact a comprehensive hands-free law. The Distracted Driving Safety Act of 2004 (DC Code Chapter 17A) governs the use of mobile phones and electronic devices while driving.

What the Law Requires

Under DC Code 50-1731.04, drivers may not:

• Use or attempt to use a mobile phone or personal wireless communications device without a hands-free accessory
• Hold or attempt to hold a mobile phone or personal wireless communications device while driving
• Wear headphones covering both ears or earbuds in both ears (except for hearing-impaired drivers)

What Counts as "Hands-Free"

Under DC Code 50-1731.02, a "hands-free accessory" is any attachment, add-on, built-in feature, or addition to a mobile phone that allows the driver to maintain both hands on the steering wheel while using the device. This includes:

• Bluetooth connections to the vehicle's audio system
• Wireless earbuds (one ear only)
• Voice-activated controls
• Dashboard or vent-mounted cradles (operated by voice, not by hand)

Navigation Devices Are Treated Differently

The definition of "personal wireless communications device" in DC Code 50-1731.02 explicitly excludes navigation systems and emergency assistance devices installed in a vehicle. This means a dedicated GPS unit installed in the dashboard is not subject to the same restrictions as a mobile phone. However, a phone being used for navigation is still a "mobile telephone" under the law and must be operated hands-free.

Exceptions to the Hands-Free Law

The law allows phone use without a hands-free accessory in these situations:

• Emergency calls to 911, 311, hospitals, ambulance services, fire departments, law enforcement, or first aid squads
• Use by law enforcement and emergency personnel acting in official capacity
• Briefly initiating or terminating a phone call, or turning the phone on or off
• Using a device when the vehicle is safely and completely stopped off an active roadway

Additional Restrictions for Certain Drivers

Under DC Code 50-1731.05:

• Learner's permit holders and drivers under 18 may not use any mobile phone or electronic device while driving, even with a hands-free accessory, except in emergencies
• School bus drivers carrying passengers may not use any mobile phone or electronic device, even with a hands-free accessory, except for emergency calls to school officials

Penalties and Fines

D.C. enforces windshield and device violations through several overlapping penalty structures.

Windshield and Obstruction Violations

The figures below come from the Metropolitan Police Department's Collateral List for Moving, Parking, and Non-Moving Violations, revised January 2025. Note that the collateral list carries no entry for a per se windshield-attachment offense, which is consistent with the repeal of 2213.7. Both obstruction entries require actual obstruction.

The collateral list sets fine amounts but does not assign license points to individual entries, and MPD states that the document is general guidance rather than legal authority. Check with the DC DMV for the point consequences of a specific citation.

Window Tint Violations

Window tint violations carry no points on the driver's record. However, the escalating fine structure is significant. A first-time $50 ticket can become a $5,000 penalty for repeat offenders who fail to bring their vehicle into compliance.

Distracted Driving and Phone Violations

All distracted driving violations are processed as moving violations but carry no points.

How the Laws Interact

D.C.'s windshield laws create a layered regulatory framework. Here is how the rules work together in common scenarios:

Small phone mount low on the windshield, phone operated by voice: No violation. Nothing prohibits the attachment, and a compact mount out of the sight line does not obstruct a significant portion of the view under 18 DCMR 2213.1. Voice operation satisfies DC Code 50-1731.04.

Large phone or tablet mounted at eye level in the middle of the windshield: This can violate 18 DCMR 2213.1 on the obstruction test alone. If the driver is also holding or touching the device while driving, that is a separate violation of DC Code 50-1731.04, and two citations are possible.

Air freshener or other item hanging from the rearview mirror: Lawful in itself since the repeal of 2213.7, but MPD can still write a $75 ticket under T190 for objects hanging so as to obstruct if the item actually blocks the view.

GPS unit mounted on the windshield: Judged only by obstruction. Dedicated GPS devices are also excluded from the distracted driving law's device definition, so a dashboard-installed unit sits outside the hands-free rules as well.

Dark windshield tint plus a mounted device: The tint is assessed on its own under 50-2207.02 and the mount on its own under 2213.1. Illegal tint plus a large obstructing screen plus a phone held in the hand could produce three separate citations.

Toll Transponders and Parking Permits

E-ZPass transponders and similar electronic toll collection devices are commonly mounted on windshields nationwide, and nothing in current D.C. regulation prohibits them. Since the repeal of 2213.7 there is no attachment-based offense to trigger, and a small transponder does not obstruct a significant portion of the driver's view under 2213.1.

The conventional placement, behind or just below the rearview mirror, keeps a transponder entirely out of the sight line. D.C. residential parking permits (zone stickers) are typically displayed on bumpers or rear windows.

Recent Changes and Updates

NEAR Act of 2016 (D.C. Law 21-125)

Section 301 of the Neighborhood Engagement Achieves Results Amendment Act of 2016 is the change that reshaped this area of law. It repealed 18 DCMR 2213.7 and 2213.8, eliminating the blanket prohibition on objects attached to or suspended from the windshield and windows, and it rewrote 2213.1 to cover obstruction of the driver's view to the front, sides, or back. The law took effect June 30, 2016, and the amended DCMR text became effective October 8, 2016.

Vision Zero Enhancement Omnibus Amendment Act of 2020 (D.C. Law 23-158)

This law strengthened the distracted driving framework by prohibiting drivers from wearing headphones over both ears or earbuds in both ears while driving (with an exception for hearing-impaired drivers). It also removed a prior provision that shielded distracted driving violations from point assessment when they did not contribute to an accident.

STEER Act of 2024 (D.C. Law 25-161)

The Strengthening Traffic Enforcement, Education, and Responsibility Amendment Act of 2024 amended various motor vehicle laws, including clarifications to offenses affecting license suspension and reinstatement requirements. It did not change the windshield obstruction rules.

Current Status of the Core Rules

The most recent adopted version of 18 DCMR 2213 on the D.C. Office of Documents register is the October 8, 2016 text, so the obstruction rules have not been amended since the NEAR Act. The 70% VLT standard for windshields under DC Code 50-2207.02 also remains unchanged.

More D.C. Laws

• District of Columbia Recording Laws
• District of Columbia Statute of Limitations