Dash Cam Mounting and Windshield Obstruction in Maryland

Md. Transp. § 21-1104 is drafted as two different kinds of prohibition, and a dash cam runs into both. Subsection (c)(1) is an interference test: a person may not drive on a highway with any object, material, or obstruction so located in or on the vehicle as to interfere with the clear view of the driver through the windshield. That is a question of fact about placement, not a ban on cameras. Subsection (d)(1) is flatly categorical: no sign, poster, card, sticker, or other nontransparent material on the windshield, side wings, or side or rear windows, with a closed list of seven carve-outs in (d)(2). Those seven are material above the AS1 line or within 5 inches of the top of the windshield, material inside a 7 inch square area in a lower corner, material on the side windows of a Class A (passenger) vehicle behind the driver, material on the side or rear windows of a Class M (multipurpose) or Class E (truck) vehicle carrying two outside rearview mirrors, a federal or State security decal affixed per the issuing agency’s guidelines, common carrier destination signs, and an electronic toll collection device placed in accordance with guidelines set by the Maryland Transportation Authority. The Legislature wrote an express windshield allowance for the E-ZPass transponder and wrote none for a camera, which is the clearest evidence available that the omission is deliberate rather than an oversight.

The absence can be shown rather than assumed. A full-text search of the General Assembly’s own site returns zero results anywhere for "dashboard camera" and zero for "video event recorder", and the hits for "dash cam" and "dashcam" are all committee testimony PDFs filed between 2020 and 2026 with not a single Annotated Code section among them. Maryland has legislated repeatedly about what may sit on a windshield and has never once named a camera.

What pushes a Maryland dash cam toward lawful is § 22-101(b)(1), which says that nothing in Title 22 shall be construed to prohibit the use of additional parts and accessories on any vehicle not inconsistent with the provisions of that title. Read alongside § 21-1104(c)(2)(i), which exempts required or permitted equipment of the vehicle, an accessory that does not obstruct the view has a statutory footing. It does not survive § 21-1104(c)(1) if it sits in the swept glass in front of the driver. The placement Maryland’s own inspection regulation implies is behind or immediately beside the rearview mirror, high and center, because COMAR 11.14.02.14E defines the "acute area" as the windshield area 8 inches wide by 5 inches high directly in front of the driver, centered vertically on the steering wheel, and defines the "critical area" as the normal windshield wiper sweep excluding the part obscured by the hood, fenders, or rearview mirror. The mirror shadow is expressly outside the critical area. Suction-cupping the camera low on the glass, or hanging it from the mirror stalk so that it swings, is what turns a lawful accessory into a § 21-1104 charge.

The statute and the regulation do not agree, and a driver should know both. Md. Transp. § 21-1104(d)(2)(i) permits nontransparent material above the AS1 line or within 5 inches of the top of the windshield. COMAR 11.14.02.14C(2), the inspection item titled Signs and Materials on Windshield or Windows, drops that allowance entirely and lists only the 7 inch lower-corner square, common carrier signs, the Maryland Transportation Authority toll device, and security stickers measuring not more than 2 inches high and not more than 4 inches long placed at the upper edge of the center of the windshield. The regulation is the narrower of the two and it is what an authorized inspection station applies, with the reject condition stated simply as the driver’s vision being obscured. COMAR 11.14.02.01A limits that chapter to equipment originally installed by the manufacturer or required by federal or State requirements, which is an argument that an aftermarket camera falls outside the standard, but the glazing item still directs the mechanic to inspect all glazing for unauthorized material or conditions that obscure the driver’s vision, so a badly placed camera is a live risk at the lane.

Maryland has no annual safety inspection, so that lane is not an annual event. Under Md. Transp. § 23-106(b)(2) an inspection certificate is required when a used vehicle is transferred, with exemptions in (a) for transfers between spouses, between a parent and child, and for a co-owner’s name being removed from the title. Between transfers, enforcement is roadside and by the Automotive Safety Enforcement Division of the Maryland State Police, which COMAR 11.14.02.01A names as the referral point for the standards in the chapter.

One more Maryland rule bites the audio channel rather than the mount. Cts. & Jud. Proc. § 10-401(13)(i) defines an oral communication as any conversation or words spoken to or by any person in private conversation, § 10-402(a)(1) makes willful interception unlawful, and § 10-402(c)(3) makes interception lawful only where the person is a party and all of the parties to the communication have given prior consent. A cabin-facing microphone recording a passenger who has not been told is the real exposure, not the forward-facing video.

A violation of § 21-1104 is a misdemeanor under Md. § 27-101(a) and carries a fine not exceeding $500 under § 27-101(b), because the section itself sets no separate penalty. Section 21-1104 does not appear anywhere among the 49 numbered items in the point schedule at Md. § 16-402(a), so a conviction treated as a moving violation falls to item (1) at 1 point, rising to item (14) at 3 points if it contributed to an accident. Under § 16-402(b) the Motor Vehicle Administration assesses points only on the charge carrying the highest assessment when several charges arise from one incident.

Equipment enforcement runs on a separate track. Md. § 23-105(a)(1) directs an officer who observes a vehicle operating with equipment that apparently does not meet the subtitle’s standards to stop the driver and issue a safety equipment repair order. That order requires the owner to have the equipment corrected within 10 days at a place of the owner’s choosing and to send a repair order certification to the Division, and § 23-105(e)(2)(i) requires the regulations to suspend the registration of a vehicle whose owner has not complied within 30 days of issuance.

Because a misplaced camera can be certified by eye, § 23-105(c)(1) obliges any police department that issues these orders to visually inspect the vehicle on the owner’s request and issue the certification without testing equipment. The rearview-mirror paragraph is the one place Maryland limits the officer: § 21-1104(c)(3)(ii) permits enforcement of that paragraph only as a secondary action after the driver has been detained for a suspected violation of another provision, so a swinging mirror mount cannot itself be the reason for the stop. Audio recording carries far heavier consequences than the mount: § 10-402(b) makes unlawful interception a felony punishable by imprisonment for not more than 5 years, a fine of not more than $10,000, or both, and § 10-410(a) gives the recorded person a civil action for liquidated damages of $100 a day or $1,000, whichever is higher, plus punitive damages and a reasonable attorney’s fee.