Wisconsin Statutes & Annotations
Chapter 347 - Equipment of vehicles.
347.10 - Headlamp specifications for motor vehicles other than mopeds and motor bicycles.

347.10 Headlamp specifications for motor vehicles other than mopeds and motor bicycles.
(1) Except as provided in sub. (4), the headlamps or the auxiliary driving lamp or the auxiliary passing lamp or combination thereof on motor vehicles other than mopeds and motor bicycles shall be so arranged that the driver may select at will between distributions of light projected to different elevations. No such lamp shall have any type of decorative covering that restricts the amount of light emitted when the lamp is in use. Such lamps may, in addition, be so arranged that such selection can be made automatically. This subsection does not apply to any type of decorative covering originally equipped on the vehicle at the time of manufacture and sale.
(2) Multiple-beam headlamps shall comply with the following requirements:
(a) There shall be an uppermost distribution of light or composite beam so aimed and of such intensity as to reveal persons and vehicles at a distance of at least 350 feet ahead for all conditions of loading;
(b) There shall be a lowermost distribution of light or composite beam so aimed and of sufficient intensity to reveal persons and vehicles at a distance of at least 100 feet ahead, and on a straight level road under any condition of loading none of the high-intensity portion of the beam shall be so directed as to strike the eyes of an approaching driver.
(3) No person shall sell after July 1, 1958, any new motor vehicle equipped with multiple beam headlamps and no person shall operate any motor vehicle sold new after July 1, 1958, and equipped with multiple beam headlamps unless such vehicle also is equipped with a beam indicator which is lighted whenever the uppermost distribution of light from the headlamps is in use and which is not otherwise lighted. Such indicator shall be so designed and located that when lighted it will be readily visible without glare to the driver of the vehicle so equipped. This subsection does not apply to motorcycles.
(4) Any motor vehicle may be operated during hours of darkness or during a period of limited visibility when equipped with 2 lighted lamps upon the front of the motor vehicle capable of revealing persons and objects 75 feet ahead in lieu of lamps required by subs. (1) to (3) if the vehicle at no time is operated at a speed in excess of 20 miles per hour. No lighted lamp under this subsection may have any type of decorative covering that restricts the amount of light emitted when the lighted lamp is in use. This subsection does not apply to any type of decorative covering originally equipped on the vehicle at the time of manufacture and sale.
History: 1983 a. 243; 1995 a. 346; 2015 a. 165.

Structure Wisconsin Statutes & Annotations

Wisconsin Statutes & Annotations

Chapter 347 - Equipment of vehicles.

347.01 - Words and phrases defined.

347.02 - Applicability of chapter.

347.03 - Sale of prohibited equipment unlawful.

347.04 - Owner responsible for improperly equipped vehicle.

347.05 - Reciprocity agreements as to equipment.

347.06 - When lighted lamps required.

347.07 - Special restrictions on lamps and the use thereof.

347.08 - Determining the visibility distance and mounted height of lamps.

347.09 - Headlamps on motor vehicles.

347.10 - Headlamp specifications for motor vehicles other than mopeds and motor bicycles.

347.11 - Headlamp specifications for mopeds and motor bicycles.

347.115 - Modulating headlamps for motorcycles, motor bicycles or mopeds.

347.12 - Use of multiple-beam headlamps.

347.13 - Tail lamps and registration plate lamps.

347.14 - Stop lamps.

347.145 - Deceleration warning lights for motorcycles, motor bicycles, mopeds or motor buses.

347.15 - Direction signal lamps or devices.

347.16 - Clearance lamps and reflectors.

347.17 - Color of clearance and marker lamps and reflectors.

347.18 - Mounting of clearance lamps and reflectors.

347.19 - Visibility of clearance lamps and reflectors.

347.20 - Lamp or flag on projecting load or fixture.

347.21 - Lamps and flags on trains of agricultural vehicles.

347.22 - Lamps on farm tractors, self-propelled implements of husbandry, and lightweight utility vehicles.

347.23 - Lamps on highway maintenance equipment.

347.24 - Lamps and reflectors on nonmotor vehicles and equipment.

347.245 - Identification emblem on certain slow moving vehicles.

347.25 - Special warning lamps on vehicles.

347.26 - Restrictions on certain optional lighting equipment.

347.27 - When lighted lamps required on parked vehicles.

347.28 - Certain vehicles to carry flares or other warning devices.

347.29 - Display of warning devices for certain vehicles when standing on highway.

347.30 - Penalty for violating lighting equipment requirements.

347.35 - Brakes.

347.36 - Performance ability of brakes.

347.37 - Brake fluid, sale regulation.

347.38 - Horns and warning devices.

347.385 - Auxiliary lamps on emergency vehicles; traffic control signal emergency preemption devices.

347.39 - Mufflers.

347.40 - Mirrors.

347.41 - Speed indicators.

347.413 - Ignition interlock device tampering; failure to install.

347.415 - Odometer tampering.

347.417 - Immobilization device tampering.

347.42 - Windshield wipers.

347.43 - Safety glass.

347.435 - Vehicle monitoring and feedback.

347.44 - Painting requirements for school buses; restrictions as to painting of other vehicles.

347.445 - Crossing gates for school buses.

347.447 - Additional safety mirrors on school buses.

347.45 - Tire equipment.

347.455 - Modifications to height of vehicle.

347.46 - Fenders and mudguards.

347.47 - Drawbars, trailer hitches and mobile home couplings.

347.475 - Airbags, prohibited practices.

347.48 - Safety belts and child safety restraint systems.

347.485 - Protective headgear for use on motorcycles.

347.486 - General requirements.

347.487 - Seating requirements.

347.488 - Moped equipment.

347.489 - Lamps and other equipment on bicycles and other vehicles and devices.

347.49 - Equipment of vehicles transporting flammable liquids.

347.50 - Penalties.