Code of Maryland Regulations › Title 11 - DEPARTMENT OF TRANSPORTATION › Subtitle 14 - MOTOR VEHICLE ADMINISTRATION-VEHICLE INSPECTIONS › Chapter 11.14.09 - Safety Standards for Low Speed Vehicles › Section 11.14.09.09 - Lighting

Current through Register Vol. 51, No. 14, July 12, 2024
A. Definitions.
(1) "Asymmetrical beam (nonsymmetrical)"
				means a beam in which both sides are not symmetrical with respect to the median
				vertical plane of the beam. All lower beams are asymmetrical.
(2) "Auxiliary driving lamp, auxiliary upper
				beam lamp, or auxiliary high beam lamp" means a lighting device mounted to
				provide illumination forward of the vehicle and intended to supplement the
				upper beam of a standard headlamp system. It is not intended for use alone or
				with the lower beam of a standard headlamp system.
(3) "Backup lamp" means a lamp used to
				provide illumination behind the vehicle, and to provide an indicator when the
				vehicle is in reverse gear.
(4)
				"Charge indicator" means a light, gauge, or other source indicating battery
				charge remaining.
(5) "Cornering
				lamp" means a steadily burning lamp used when the turn signal system is
				operating to supplement the headlamps by providing additional road illumination
				in the direction of the turn.
(6)
				"Emergency warning lamp" means a lamp that provides a flashing light to
				identify an authorized vehicle on an emergency mission. The emergency signal
				may be an oscillating lamp, a rotating beacon, or pairs of alternately or
				simultaneously flashing lamps.
(7)
				"Fog lamp" means a lamp that may be used with the lower beam headlights to
				provide illumination under condition of rain, snow, dust, or fog.
(8) "Hazard warning lamp" means a turn signal
				lamp that flashes simultaneously to warn of the presence of a vehicular
				hazard.
(9) Headlamps.
(a) 5 3/4 Inch Round Sealed Beam Unit.
(i) "Type 1 sealed beam" means a sealed beam
				unit 5 3/4 inches in diameter having a single filament and providing only an
				upper beam distribution of light. This unit is identified by the number 1 on
				the lens and is aimed on the upper beam.
(ii) "Type 2 sealed beam unit" means a sealed
				beam unit 5 3/4 inches in diameter having two filaments, one filament providing
				the lower beam and one filament providing fill-in light for the upper beam.
				This unit is identified by the number 2 on the lens and is aimed on the lower
				beam.
(b) "7 inch round
				sealed beam unit" means a sealed beam unit 7 inches in diameter providing an
				upper and lower beam. This unit is identified by the number 2 on the lens and
				is aimed on the lower beam. If there is no identifying number on the lens, it
				means the sealed beam unit is 7 inches in diameter providing upper and lower
				beams.
(c) "8 inch by 5 inch
				rectangular sealed beam unit" means a sealed beam unit providing an upper and
				lower beam. This unit is identified by the number 2B on the lens and is aimed
				on the lower beam.
(d) 6 1/2 by 4
				1/4 Inch Rectangular Sealed Beam Unit.
(i)
				"Type 1A" means a sealed beam unit having a single filament and providing only
				an upper beam distribution of light. The unit is identified by the number 1A on
				the lens and is aimed on the upper beam.
(ii) "Type 2A" means a sealed beam unit
				having two filaments, one of which provides fill-in light for the upper beam.
				This unit is identified by the number 2A on the lens and is aimed on the lower
				beam.
(e) 5.93 X 3.64
				inch Rectangular Sealed Beam Units.
(i) "Type
				LF" means a sealed beam unit having a single beam filament and providing only a
				lower beam distribution of light. The unit is identified by the designation LF
				on the lens.
(ii) "Type UF" means a
				sealed beam unit having a single beam filament and providing only an upper beam
				distribution of light. The unit is identified by the designation UF on the
				lens.
(f) "Replaceable
				bulb headlamp" means a headlamp unit comprised of one or two replaceable
				standard light sources such as a bulb and a headlamp housing or a
				lens/reflector unit.
(10) "Headlamp lower beam" means a
				distribution of light as directed to avoid glare in the eyes of oncoming
				drivers while providing illumination ahead of the vehicle, and intended for use
				in congested areas and on highways when meeting other vehicles within a
				distance of 500 feet.
(11)
				"Headlamp upper beam" means a distribution of light intended primarily for
				distant illumination and for use on the open highway when not meeting other
				vehicles.
(12) "Indicator lamp"
				means a lamp visible to the operator of a vehicle that indicates:
(a) Appropriate electrical circuits are in
				operation;
(b) Malfunction of
				vehicle performance; and
(c)
				Requirement for remedial action by the operator of the vehicle.
(13) "Lamp" means a device used to
				produce artificial light.
(14)
				"Lane changer" means a device, usually incorporated in the turn signal switch,
				which will actuate the turn signal lamps when held by the driver. It is
				intended for momentary use for signaling a lane change. When released by the
				operator, it will return to neutral and deactivate the signal lamp.
(15) "License-plate lamp" means a lamp used
				to illuminate the license plate on the rear of a vehicle.
(16) "Operating units or switches" means
				devices by which the functioning of lamps is controlled.
(17) "Parking lamp" means lamps used to
				designate the front of a parked vehicle.
(18) "Reflective device" means a device used
				on vehicles to give an indication to an approaching driver by reflected light
				from the headlamps of approaching vehicles.
(19) "SAE Lighting Identification Code" means
				a series of standardized markings for lighting devices that a manufacturer or a
				supplier may use to mark a product to indicate the SAE lighting standard or
				standards to which the device is designed to conform. The code is not intended
				to limit the manufacturer or supplier in applying other markings to the
				devices.
(20) "Sealed beam headlamp
				assembly" means a major lighting device used to provide general illumination
				ahead of the vehicle. It consists of the following:
(a) One or more sealed beam units (bulb
				assembly);
(b) Means for mounting
				securely to the vehicle; and
(c)
				Means to permit required aim adjustment.
(21) "Sealed beam unit" means an integral and
				hermetically sealed optical assembly with the name "Sealed Beam" molded in the
				lens.
(22) "Side marker lamp" means
				a lamp on the left and right sides, beamed to the side and intended to indicate
				vehicle length. They are located near the front and rear on each side and, for
				vehicles 30 feet or more in overall length, are also located at the midpoint
				(intermediate side marker).
(23)
				"Stop lamp" means a lamp giving a steady warning light to the rear of the
				vehicle, to indicate the intention of the operator of the vehicle to reduce
				speed or stop.
(24) "Symmetrical
				beam" means one in which both sides are symmetrical with respect to the median
				vertical plane of the beam. Lamps having symmetrical beams are:
(a) 5 3/4 inch diameter type 1, 1C, or
				1C1;
(b) 5 3/4 inch diameter type
				2, 2C, or 2C1 (upper beam filament);
(c) 6 1/2 by 4 1/4 inch type 1A or
				1A1;
(d) 6 1/2 by 4 1/4 inch type
				2A, 2A1, 2G1, 2E1, or 2H1 (upper beam filament);
(e) 8 by 5 inch type 2B or 2B1 (upper beam
				filament);
(f) All 7 inch diameter
				units (upper beam filament); and
(g) Replaceable bulb headlamp (upper beam
				filament).
(25) "Tail
				lamp" means a lamp used to designate the rear of a vehicle.
(26) "Turn signal lamp" means a lamp that
				provides a flashing warning light to indicate the intended direction of the
				turn.
Agency Note: The following are some examples of
				  replaceable bulb headlamps, Type-HB1-9004 (low and high beam); HB2-9003 (low
				  and high beam); HB3-9005 (high beam); HB4-9006 (low beam); and HB5-9007 (low
				  and high beam). For more information and a complete list of replaceable bulb
				  headlamps, consult an automotive lighting reference or specification guide, or
				  vehicle manufacturer.