(a) Except as otherwise provided in this section, after June 1, 1971, every motor vehicle, trailer, semitrailer, and pole trailer, and any other vehicle that is being drawn at the end of a combination of vehicles, shall be equipped with at least 2 tail lamps mounted on the rear, which, when lighted as required in § 22-201.1 of this subtitle, shall emit a red light plainly visible from a distance of 1,000 feet to the rear.
(b) Every motor vehicle, trailer, semitrailer, and pole trailer, and any other vehicle that is being drawn at the end of a combination of vehicles, and that was manufactured or assembled before June 1, 1971, shall have at least 1 tail lamp mounted on the rear which, when lighted as required in § 22-201.1 of this subtitle, shall emit a red light plainly visible from a distance of at least 300 feet to the rear.
(c) On a combination of vehicles, only the tail lamps on the rearmost vehicle need actually be seen from the distance specified in subsections (a) and (b) of this section.
(d) On vehicles equipped with more than 1 tail lamp, the lamps shall be mounted on the same level and as widely spaced laterally as practicable.
(e) Every tail lamp on every vehicle shall be located at a height of not more than 72 inches nor less than 20 inches.
(f) Either a tail lamp or a separate lamp shall be constructed and placed to illuminate, with a white light, the rear registration plate and render it clearly legible from a distance of 50 feet to the rear. Any tail lamp or tail lamps, together with any separate lamp or lamps for illuminating the rear registration plate, shall be wired to be lighted whenever the head lamps or auxiliary driving lamps are lighted.
(g) Notwithstanding any provision of this section to the contrary, special mobile equipment that is being drawn at the end of a combination of vehicles is not required to be equipped with tail lamps unless:
(1) The special mobile equipment obstructs the tail lamps, stop lamps, turn signals, or, except for the registration plate lamp, any lamps of the towing vehicle required by law to be visible from the rear; or
(2) The special mobile equipment extends more than 12 feet from the rear of the towing vehicle.
Structure Maryland Statutes
Title 22 - Vehicle Laws -- Equipment of Vehicles
Subtitle 2 - Lamps and Other Lighting Equipment
Section 22-201 - "Service Vehicles" Defined
Section 22-201.1 - When Lighted Lamps Are Required
Section 22-201.2 - Use of Headlights When Windshield Wipers Are Operated
Section 22-202 - Visibility Distance; Measuring Mounted Height of Lamps
Section 22-203 - Headlamps on Motor Vehicles and Motorcycles
Section 22-204 - Tail Lamps; Illumination of Rear Registration Plate
Section 22-206 - Stop Lamps and Turn Signals
Section 22-208 - Clearance, Identification, and Marker Lamps and Reflectors Required
Section 22-210 - Mounting of Reflectors, Clearance Lamps, and Side Marker Lamps
Section 22-212 - Obstructed Lamps Not Required to Be Lighted
Section 22-213 - Lamps, Reflectors, and Flags on Projecting or Extended Loads
Section 22-214 - Lamps on Parked Vehicles
Section 22-215 - Lamps on Farm Tractors and Farm Equipment
Section 22-215.1 - Rollback Vehicle Operated in Combination With Vehicle Being Towed
Section 22-216 - Lamps on Other Vehicles and Equipment
Section 22-217 - Spot Lamps, Fog Lamps, and Auxiliary Driving Lamps
Section 22-218 - Audible and Visual Signals on Vehicles
Section 22-218.1 - Rural Letter Carrier's Warning Device
Section 22-218.2 - Amber Lights on Tow Trucks, Escort, and Maintenance Vehicles
Section 22-219 - Signal Lamps and Signal Devices
Section 22-221 - Additional Lighting Equipment
Section 22-222 - Multiple-Beam Road-Lighting Equipment
Section 22-223 - Use of Multiple-Beam Road-Lighting Equipment
Section 22-225 - Alternate Road-Lighting Equipment
Section 22-226 - Number of Driving Lamps Required or Permitted
Section 22-227 - Special Restrictions on Lamps
Section 22-228 - Special Equipment on School Vehicles
Section 22-230 - Selling or Using Lamps or Equipment
Section 22-232 - Revocation of Certificate of Approval on Lighting Devices