(a) Except as otherwise provided by law, an outdoor sign along or near a federal-aid primary highway may be lighted, but is subject to the restrictions specified in this section.
(b) A sign that includes or is lighted by any flashing, intermittent, or moving light is prohibited, unless that sign is giving public service information such as time, date, temperature, weather, or similar information.
(c) A sign that is not effectively shielded so as to prevent its light beams or rays from being directed at any part of the main traveled ways of the federal-aid primary highway is prohibited, if the beams or rays:
(1) Are of such intensity or brillance as to cause glare or impair the vision of the driver of any motor vehicle; or
(2) Otherwise interfere with any driver’s operation of a motor vehicle.
(d) A sign may not be lighted in any way that obscures or otherwise interferes with the effectiveness of an official traffic sign, signal, or device.
Structure Maryland Statutes
Subtitle 7 - Regulation of Outdoor Advertising
Part IV - Outdoor Signs Along Federal-Aid Primary Highways
Section 8-726 - Legislative Policy
Section 8-728 - General Prohibition
Section 8-729 - Permit Required
Section 8-730 - Signs for Which Permit May Not Be Issued
Section 8-732 - Spacing of Signs at Intersections
Section 8-733 - Lighting of Signs
Section 8-734 - Mandatory Removal of Preexisting, Nonconforming Signs
Section 8-735 - Permissive Removal of Preexisting, Nonconforming Signs
Section 8-736 - Local Zoning Regulations
Section 8-737 - Compensation for Removal of Sign Adjacent to Federal-Aid Highway