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.
SUBCHAPTER III
OTHER EQUIPMENT
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.
Ch. 347 Cross-reference Cross-reference: See also ch. Trans 305, Wis. adm. code.
subch. I of ch. 347 SUBCHAPTER I
GENERAL PROVISIONS
347.01 347.01 Words and phrases defined. Words and phrases defined in s. 340.01 are used in the same sense in this chapter unless a different definition is specifically provided.
347.02 347.02 Applicability of chapter.
347.02(1)(1)No provision of this chapter requiring vehicles to be equipped in a particular manner is applicable to any of the following vehicles unless the vehicle is expressly included within or made subject to the particular provision:
347.02(1)(a) (a) Farm tractors.
347.02(1)(b) (b) Implements of husbandry.
347.02(1)(c) (c) Vehicles drawn by animals.
347.02(1)(d) (d) Road machinery.
347.02(1)(e) (e) Bicycles.
347.02(1)(em) (em) Electric bicycles.
347.02(1)(g) (g) Motor bicycles.
347.02(1)(h) (h) Golf carts operated in accordance with s. 349.18 (1) (b) or (c) or (1m).
347.02(1)(i) (i) Electric scooters and electric personal assistive mobility devices.
347.02(1)(j) (j) Lightweight utility vehicles, as defined in s. 346.94 (21) (a) 2.
347.02(1)(k) (k) Personal delivery devices.
347.02(2) (2)No provision of this chapter requiring or prohibiting certain types of equipment on a vehicle is applicable when such vehicle is not operated upon or occupying a highway.
347.02(2m) (2m)
347.02(2m)(a)(a) No provision of this chapter requiring or prohibiting certain types of equipment on a vehicle is applicable to an imported vehicle which has been granted entry into the United States by the federal government solely for the purpose of test or experiment.
347.02(2m)(b) (b) The exemption under par. (a) is limited to the one-year period following the entry of the vehicle.
347.02(3) (3)Nothing in this chapter shall be construed to prohibit the use of additional parts and accessories on any vehicle not inconsistent with this chapter.
347.02(4) (4)Beginning July 1, 1960, the provisions of this chapter covering lighting shall be applicable to all state, county and municipal trucks, truck tractors, trailers and semitrailers.
347.02(5) (5)If a vehicle registered under s. 341.25 (1) (a), 341.265, 341.266, or 341.269 has equipment which was designated by the manufacturer as optional equipment in the model year the vehicle was manufactured, it is not necessary for such equipment to be in operating condition unless it replaces equipment which is required by law to be both present and functioning.
347.02(6) (6)Notwithstanding the requirements of this chapter, the department may establish special equipment standards for vehicles operated under s. 343.135 which differ from the equipment standards established under this chapter. Equipment standards established under this subsection may not be less stringent than any federal standards established for the vehicle.
347.02(7) (7)The vehicle equipment requirements for a street modified vehicle shall be the same as the vehicle equipment requirements for a vehicle of the same type and model year that is not a street modified vehicle. The vehicle equipment requirements for a replica vehicle or a homemade vehicle specified in s. 341.268 (1) (b) 2. shall be the same as the vehicle equipment requirements for a vehicle of the same type and model year as the vehicle used for purposes of the reproduction.
347.03 347.03 Sale of prohibited equipment unlawful. No person shall sell for highway use any device, appliance, accessory or replacement part the use of which on a motor vehicle is unlawful.
347.04 347.04 Owner responsible for improperly equipped vehicle. Any owner of a vehicle not equipped as required by this chapter who knowingly causes or permits such vehicle to be operated on a highway in violation of this chapter is guilty of the violation the same as if he or she had operated the vehicle personally. No demerit points shall be assessed or counted pursuant to s. 343.32 against the operator's license of the owner of the vehicle by reason of the owner's conviction of any such violation unless the owner was personally operating the vehicle at the time of the violation.
347.04 History History: 1989 a. 105.
347.05 347.05 Reciprocity agreements as to equipment.
347.05(1)(1)The secretary, with the approval of the governor, is authorized to enter into reciprocal agreements with the duly authorized representatives of other jurisdictions exempting the residents of those jurisdictions from details of vehicle equipment requirements of this state which are particularly burdensome to residents of such other jurisdictions operating vehicles in this state, provided the law of such other jurisdiction requires vehicles to be equipped in a manner rendering them substantially as safe as those equipped in the manner required by the laws of this state. The agreements shall provide substantially like exemptions for residents of this state when operating vehicles in such other jurisdiction.
347.05(2) (2)This section does not authorize reciprocity agreements as to laws governing the size and weight of vehicles.
347.05 History History: 1977 c. 29 s. 1654 (7) (c).
subch. II of ch. 347 SUBCHAPTER II
LIGHTING EQUIPMENT
347.06 347.06 When lighted lamps required.
347.06(1)(1)Except as provided in subs. (2) and (4), no person may operate a vehicle upon a highway during hours of darkness or during a period of limited visibility unless all headlamps, tail lamps, and clearance lamps with which the vehicle is required to be equipped are lighted. Parking lamps as described in s. 347.27 may not be used for this purpose. This subsection does not apply if lamps that are automatically activated whenever the vehicle is started are in use, if the headlamps are of sufficient intensity to satisfy the requirements for daytime running lamps under 49 CFR 571.108, S7.10.13.
347.06(2) (2)Headlamps need not be lighted on a towed vehicle or on a vehicle having at least 2 lighted adverse weather lamps on the front thereof and being operated under the circumstances described in s. 347.26 (3) (b).
347.06(3) (3)The operator of a vehicle shall keep all lamps and reflectors with which such vehicle is required to be equipped reasonably clean and in proper working condition at all times.
347.06(4) (4)A duly authorized warden, as defined in s. 24.01 (11), may operate a vehicle owned or leased by the department of natural resources upon a highway during hours of darkness or during a period of limited visibility without lighted headlamps, tail lamps, or clearance lamps in the performance of the warden's duties under s. 29.924 (2).
347.07 347.07 Special restrictions on lamps and the use thereof.
347.07(1)(1)Whenever a motor vehicle equipped with headlamps also is equipped with any adverse weather lamps, spotlamps or auxiliary lamps, or with any other lamp on the front thereof projecting a beam of intensity greater than 300 candlepower, not more than a total of 4 of any such lamps or combinations thereof on the front of the vehicle shall be lighted at any one time when such vehicle is upon a highway.
347.07(2) (2)Except as provided in sub. (3), or as otherwise expressly authorized or required by this chapter, no person shall operate any vehicle or equipment on a highway which has displayed thereon:
347.07(2)(a) (a) Any color of light other than white or amber visible from directly in front; or
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2019-20 Wisconsin Statutes updated through 2021 Wis. Act 24 and through all Supreme Court and Controlled Substances Board Orders filed before and in effect on April 15, 2021. Published and certified under s. 35.18. Changes effective after April 15, 2021, are designated by NOTES. (Published 4-15-21)