Frederick, MD Parking Rules: Commercial & Oversized Vehicles (2026)

Sec. 13-14 of Frederick's motor vehicle and traffic code, added by Ordinance No. G-23-13 and rooted in Ordinance No. G-87-3 from 1987, prohibits a 'commercial motor vehicle,' defined by cross-reference to Maryland Code, Transportation Article § 16-803, from driving on any street posted with a sign prohibiting these vehicles. Subsection (b) leaves the choice of which streets to post to the Director of Public Works, who must weigh the totality of the circumstances, including how close a street is to commercial hubs that draw truck traffic, the city's Comprehensive Plan, and its Complete Streets Policy.

The prohibition is not absolute: subsection (c) exempts government vehicles operated for governmental purposes, such as emergency vehicles, sanitation trucks, and school buses, and exempts a vehicle traveling a posted street out of necessity to make a local delivery, perform repairs or contracting services, or accomplish some other limited, lawful, and temporary purpose tied to a property on that street. Subsection (d) authorizes the Director to erect and maintain the signs needed to make the restriction enforceable, and subsection (e) directs that a driver who disregards a posted restriction be cited for failing to obey a traffic control device under Maryland Code, Transportation Article § 21-201, rather than under a separate city penalty schedule.