Maryland window tint laws require at least 35% visible light transmission on regulated windows with post-manufacture tint. Passenger cars registered under Section 13-912 need 35% on all side and rear windows. Trucks, vans, and multipurpose vehicles need 35% only on front side windows. The rules come from Maryland Annotated Code Transportation Article Section 22-406. This article covers penalties, prohibited tint types, windshield limits, and medical exemptions.
Maryland Window Tint Laws Overview
Maryland regulates aftermarket window film through Transportation Article Section 22-406 subsection i. The law targets tint added after factory glass installation, not original manufacturer glazing. Police may stop a vehicle when tint appears darker than the statute allows on a regulated window.
A violation can bring a traffic citation plus a Safety Equipment Repair Order under Section 23-105. Installers also face limits under subsection i paragraph 3 of the same statute. Laws and enforcement may change. Check official Maryland sources for the latest rules.
Key Terms Drivers Should Know
Visible light transmission, or VLT, measures how much light passes through glass plus film. Maryland sets a 35% VLT floor on regulated windows with post-manufacture window tint. Tint below that level is often called enhanced window tint under state law.
Post-manufacture window tint means aftermarket film applied after the vehicle left the factory. The AS-1 line is a federal windshield marking that defines where top tint may end. A Safety Equipment Repair Order, or SERO, requires proof that illegal tint was removed or corrected.
Legal Tint Limits for Passenger Cars
Passenger cars, convertibles, and station wagons must meet 35% VLT on every side and rear window after post-manufacture tint is applied. This matches COMAR 11.14.02.14 rules for regulated windows on those vehicle types. The vehicle must also have an outside rearview mirror on each side.
Registration under Section 13-912 of the Transportation Article triggers the all-window rule in Section 22-406 subsection i paragraph 1. Sedans and coupes fall in this group for most readers. Rear darkness limits that apply to SUVs do not apply to these cars.
Tint Rules for SUVs Vans and Light Trucks
Light trucks, vans, and multipurpose passenger vehicles follow a split rule under COMAR 11.14.02.14. Front side windows to the immediate right and left of the driver need at least 35% VLT after post-manufacture tint. Windows to the rear of the driver may use post-manufacture window tint at any darkness level.
Vehicles registered under Sections 13-913, 13-917, or 13-937 face the front-only 35% rule in Section 22-406 subsection i paragraph 1. This is why Maryland SUV rear window tint rules differ from sedan limits. Dual outside rearview mirrors are required when any rear or side window behind the driver is tinted.
Maryland Legal Tint Limits at a Glance
| Vehicle type | Front side windows | Rear side and rear window | Windshield below AS-1 or 5 inches | | Passenger car | 35% VLT minimum | 35% VLT minimum | Not allowed | | SUV van light truck | 35% VLT minimum | Any darkness with dual mirrors | Not allowed |
Windshield Tint Rules in Maryland
Post-manufacture window tint may not be applied below the AS-1 line or below 5 inches from the top of the windshield, whichever is less. This rule appears in both Section 22-406 subsection i paragraph 4 and COMAR 11.14.02.14. A small top strip above that line is the only allowed windshield tint zone.
Medical exemptions do not allow tint on the main windshield area below those marks. Section 22-406 subsection i paragraph 4 subparagraph iv states that limit plainly. Windshield rules apply even when side and rear windows carry darker legal or exempt film.
Prohibited Tint Types in Maryland
COMAR 11.14.02.14 bans several post-manufacture tint types on any window or windshield. Reflective tint with a mirrored or one-way vision effect is prohibited. Sparkling effect film is also banned on Maryland roads.
Red, yellow, and amber tint colors are not allowed. Film that changes to those colors is also barred. These color and reflective tint prohibitions apply to passenger cars and multipurpose passenger vehicles alike. Full inspection standards appear in COMAR 11.14.02.14 Vehicle Glazing.
Dual Mirror Requirement for Rear Tint
When post-manufacture tint is on any side or rear window behind the driver, Maryland requires an outside rearview mirror on each side. COMAR 11.14.02.14 states this rule for light trucks, vans, and multipurpose passenger vehicles. Passenger cars with tinted rear windows need the same dual mirror setup.
The mirror rule supports safe backing when rear glass is dark. Police may treat missing mirrors as a separate equipment issue during a tint stop. Dark rear tint without dual outside mirrors does not meet Maryland vehicle glazing standards.
Penalties Citations and SERO Orders
Operating a vehicle with illegal window tint in Maryland may result in a citation plus a Safety Equipment Repair Order. Section 22-406 subsection i paragraph 2 authorizes both when an officer observes a violation. The driver must address the tint defect within the SERO timeframe under Section 23-105.
A 2025 legislative fiscal note lists a $70 prepayable fine for a Section 22-406 subsection i violation. The same analysis notes a maximum misdemeanor fine up to $500. Illegal window tint Maryland stops can also lead to inspection failure for defect 61 TINT under state inspection rules.
Medical Exemption for Window Tint
Maryland tint medical exemption allows darker than 35% VLT on regulated windows when sun protection is medically necessary. The owner must carry a written certification from a Maryland licensed physician in the required format from the Automotive Safety Enforcement Division of the Department of State Police.
A physician sets how long the certification lasts, up to two years for non-permanent conditions. Chapter 453 of the 2025 Maryland Session allows indefinite certification when the physician finds a permanent medical condition. That change took effect October 1, 2025.
The certification must stay in the vehicle when stopped. The exemption does not permit windshield tint below the AS-1 line or 5 inch top limit. Owners with a SERO for tint may need Division review of medical documents before inspection clearance.
Vehicle Types With Special Rules
COMAR 11.14.02.14 bars post-manufacture window tint on all windows and windshields of school vehicles. Limousines may not use post-manufacture tint on the windshield or front side windows next to the driver. Rear limousine windows may be tinted to any darkness with dual outside mirrors.
Section 22-406 subsection i paragraph 4 subparagraph iii allows easily removable tint to shield a child under 10 from the sun. That narrow exception does not replace the medical waiver process for adult drivers. Trucks over 10,000 pounds gross vehicle weight rating face limits noted in legislative analysis tied to enhanced tint rules.
Common Misconceptions About Maryland Tint Law
Some drivers believe Maryland allows 20% tint on front side windows. Front regulated windows must meet the 35% VLT standard unless a valid medical certification is in the vehicle. Another myth holds that all vehicles may use any rear darkness without mirrors.
Rear windows on SUVs and vans may be very dark, but dual outside rearview mirrors are mandatory in that case. Many online guides still say medical certifications always expire after two years. After October 1, 2025, a permanent condition may support indefinite certification under enacted statute language.
Maryland window tint laws also differ from neighboring states, so a film legal elsewhere may fail here. Drivers comparing rules may also review Louisiana window tint laws for another state standard in the same topic cluster.
Disclaimer
This article is for general informational purposes only. It is not legal advice. Lawwalls publishes informational content only and does not provide legal services or legal advice.
For legal advice about your specific situation contact a licensed attorney in your state. Laws change and vary by jurisdiction. Verify current rules with official government sources or a qualified lawyer.