Current law imposes various equipment requirements for vehicles operated on
highways, including certain lighting and marking requirements. Although these
requirements are generally inapplicable to implements of husbandry, farm tractors,
and self-propelled farm implements, current law does impose various specific
requirements with respect to lighting and marking of implements of husbandry and
other agricultural vehicles.
Under current law, during hours of darkness, the following requirements apply
with respect to each described vehicle operated on the highway:
1. A farm tractor or self-propelled farm implement must carry the lighted
headlamps and tail lamps that would be required of other vehicles and the only color
of light that may show to the rear is red.
2. An implement of husbandry must generally be equipped with at least two
lighted lamps or lanterns exhibiting a white light to the front and either two lighted
lamps or lanterns exhibiting a red light to the rear or two red reflectors mounted on
the rear. Also, if the implement of husbandry extends at least four feet to the left of
the center line of a towing vehicle, it must be equipped with an amber reflector
mounted on the left side, facing forward, to mark the extreme width of the implement
of husbandry to drivers of oncoming vehicles.
3. A truck-drawn agricultural train must have mounted on each side of every
vehicle in the train at least one lamp emitting red light visible to the side or at least
one red reflector or one slow moving vehicle (SMV) emblem visible from the side.
4. An implement of husbandry train must have mounted on each side of every
vehicle in the train at least one lamp emitting a red light visible to the side or at least
one red reflector visible from the side.
Certain requirements also apply to a farm tractor, implement of husbandry, or
self-propelled farm implement, whether attended or unattended, parked, or left
standing on the roadway or shoulder of a highway during hours of darkness.
Under current law, at times other than hours of darkness, an implement of
husbandry train operated on a highway must display a red flag at least 12 inches
square on each rear corner of the rearmost vehicle in the train.
Under current law, a person may not operate on a highway, day or night, any
vehicle that usually travels at speeds of less than 25 miles per hour unless an SMV
emblem is displayed on the most practicable visible rear area. However, instead of
the SMV emblem, a vehicle may be equipped with a yellow or amber flashing light
at least four inches in diameter attached to the left rear. The SMV emblem is also
not required if the vehicle is only moving directly across the highway. A towed vehicle
is exempt from this requirement if an SMV emblem on the towing vehicle is visible
from the rear. The SMV emblem must meet standards and specifications for design
and mounting established by rule by DOT, but this rule must conform to standards
and specifications approved by the American Society of Agricultural Engineers.
In addition to the lighting and marking requirements described above, this bill
creates new lighting and marking requirements for implements of husbandry
operated on the highway that exceed 15 feet in total width or that extend over the
center of the roadway into a lane intended for the opposite direction of travel (wide

implements of husbandry). With an exception, a person may not operate on a
highway a wide implement of husbandry manufactured before January 1, 2014,
unless it is equipped with all of the following: 1) at least two amber flashing warning
lamps, visible from both the front and rear; 2) red retroreflective conspicuity
material, visible to the rear; 3) at least two strips of yellow retroreflective conspicuity
material, visible to the front; and 4) at least two red tail lamps. Any lamp or light
required above must be lighted and visible when the wide implement of husbandry
is operated on a highway and the lamps or lights, devices, and material described
above must generally meet certain visibility requirements and be mounted so as to
indicate the lateral extremities of the implement of husbandry. The exception allows
daytime operation of a wide implement of husbandry manufactured before January
1, 2014, if the implement of husbandry is accompanied by an escort vehicle and
displays to the rear two orange or red flags. A wide implement of husbandry
manufactured before January 1, 2014, must also display an SMV emblem. An
implement of husbandry manufactured on or after January 1, 2014, may not be
operated on a highway unless it is equipped with all lighting and marking devices
with which the implement of husbandry was originally equipped by the
manufacturer and all such lighting and marking devices are in good working order
and visible at the time of operation.
Under the bill, a person may not operate on a highway any self-propelled
implement of husbandry manufactured before January 1, 2014, that exceeds 12 feet
in total width, unless it is equipped with a yellow or amber rotating strobe or beacon
light mounted at the highest practicable point, or two flashing amber lights visible
to the front and rear, and the light or lights are activated. If an implement of
husbandry exceeds 22 feet in total width, in addition to the applicable foregoing
requirements, it must be accompanied by an escort vehicle operating with hazard
lights activated unless it is traveling between fields or between a farm and a field and
is operated on the highway for a distance of 0.5 miles or less.
The bill also eliminates the requirement that an implement of husbandry train
operated on a highway during the day must display a red flag on each rear corner of
the rearmost vehicle in the train.
Rules of the road relating to implements of husbandry
Under current law, on all roadways of sufficient width, the operator of a vehicle
must generally drive on the right half of the roadway and in the right-hand lane of
a three-lane highway, subject to various exceptions, such as when the operator is
making a left turn or U-turn or is overtaking and passing another vehicle. A vehicle
operator must also drive as nearly as practicable entirely within a single lane and,
on a three-lane highway, may not drive in the center lane, subject to exceptions like
those discussed above. With an exception, a vehicle operator may not drive in a lane
when signs or signals indicate that the lane is allocated exclusively to vehicles
moving in the opposite direction.
Also under current law, on a two-way roadway: 1) operators of vehicles
proceeding in opposite directions must pass each other to the right and give to the
other at least one-half of the main traveled portion of the roadway as nearly as
possible; and 2) a vehicle operator may not drive on the left side of the center of the

roadway on a grade or curve where the operator's view is obstructed or, with an
exception, in an area designated by signs or pavement marking it as a no-passing
zone. In general, a person may not drive a motor vehicle so slowly as to impede the
normal movement of traffic and the operator of a slow-moving vehicle must, if
practicable, yield the roadway to an overtaking vehicle.
This bill creates an exception allowing a wide implement of husbandry that
satisfies applicable lighting and marking requirements and that is operated as much
as practicable on the right half of the roadway and within a single lane to: 1) extend
over the center of the roadway into a lane intended for travel in the opposite
direction; 2) extend into the passing lane of a three-lane highway; and 3) extend into
another lane intended for travel in the same direction if it does not impede other
vehicles approaching from the rear. However, this exception does not exempt the
operator of the wide implement of husbandry from the requirements and
prohibitions above, specifying that a vehicle operator must pass a vehicle proceeding
in the opposite direction on the right and yield half of the roadway if possible; a
vehicle operator may not drive on the left side of the roadway on a grade or curve
where the operator's view is obstructed or in an area designated as a no-passing
zone; and a vehicle operator may not drive so slowly as to impede the normal
movement of traffic and must, if practicable, yield the roadway to an overtaking
vehicle.
Under current law, a vehicle operator may not drive on the left side of the center
of a roadway designated, by signs or a solid yellow line, as a no-passing zone.
However, under an exception, a vehicle operator may cross to the left of the center
of the roadway in such a no-passing zone to overtake and pass, with care, any vehicle
traveling at a speed less than half of the applicable speed limit. Under this bill, this
exception does not apply with respect to overtaking and passing an implement of
husbandry or an agricultural CMV.
Required disclosures in sales of farm equipment
Under current law, no person in the business of selling a tractor or other
machinery used in the business of farming (farm equipment) may sell farm
equipment unless, at the time of sale, the farm equipment is equipped with specified
safety equipment, including lights, reflectors, and an SMV emblem meeting
applicable vehicle equipment requirements, if the farm equipment can be operated
on a highway. However, this requirement does not apply to sales of farm equipment
to another person in the business of selling farm equipment for the purpose of resale,
sales of farm equipment for the purpose of salvage, and most sales by auction. A
person who violates this requirement may be required to forfeit not more than $500
for each violation.
Under this bill, no person in the business of selling farm equipment may sell
farm equipment that can be operated on a highway unless, at the time of sale, the
person who sells the farm equipment discloses to the buyer the gross vehicle weight
of the farm equipment. The exceptions and penalty described above also apply with
respect to this requirement. The bill also specifies that lights, reflectors, and other
marking devices with which farm equipment is required to be equipped at the time

of sale are those meeting applicable vehicle equipment requirements at the time the
farm equipment was manufactured.
The people of the state of Wisconsin, represented in senate and assembly, do
enact as follows:
SB509-engrossed,1 1Section 1. 100.47 (2) (c) of the statutes is amended to read:
SB509-engrossed,10,42 100.47 (2) (c) Lights and, reflectors, and other marking devices meeting the
3applicable requirements under ch. 347 at the time the farm equipment was
4manufactured
, if farm equipment that can be operated on a highway.
SB509-engrossed,2 5Section 2. 100.47 (3) of the statutes is renumbered 100.47 (3) (a).
SB509-engrossed,3 6Section 3. 100.47 (3) (b) of the statutes is created to read:
SB509-engrossed,10,107 100.47 (3) (b) No person in the business of selling farm equipment may sell
8farm equipment that can be operated on a highway unless, at the time of sale, the
9person who sells the farm equipment discloses to the buyer the gross vehicle weight
10of the farm equipment.
SB509-engrossed,4 11Section 4. 100.47 (4) (intro.) of the statutes is amended to read:
SB509-engrossed,10,1312 100.47 (4) Exceptions. (intro.) Subsection (2) does Subsections (2) and (3) (b)
13do
not apply to:
SB509-engrossed,5 14Section 5. 227.01 (13) (rs) of the statutes is created to read:
SB509-engrossed,10,1715 227.01 (13) (rs) Relates to any form prescribed by the department of
16transportation under s. 348.03 (1) or 348.27 (19) (d) 1. or procedure prescribed under
17s. 348.27 (19) (d) 2.
SB509-engrossed,6 18Section 6. 340.01 (1o) of the statutes is created to read:
SB509-engrossed,10,2019 340.01 (1o) "Agricultural commercial motor vehicle" means a commercial
20motor vehicle to which all of the following apply:
SB509-engrossed,11,2
1(a) The vehicle is substantially designed or equipped, or materially altered
2from its original construction, for the purpose of agricultural use.
SB509-engrossed,11,33 (b) The vehicle was designed and manufactured primarily for highway use.
SB509-engrossed,11,64 (c) Unless the vehicle was manufactured prior to 1970, the vehicle was
5manufactured to meet federal motor vehicle safety standard certification label
6requirements as specified in 49 CFR 567.
SB509-engrossed,11,77 (d) The vehicle is used exclusively in the conduct of agricultural operations.
SB509-engrossed,11,98 (e) The vehicle is directly engaged in harvesting farm products, directly applies
9fertilizer, spray, or seeds to a farm field, or distributes feed to livestock.
SB509-engrossed,7 10Section 7. 340.01 (24) of the statutes is repealed and recreated to read:
SB509-engrossed,11,1211 340.01 (24) (a) Subject to par. (b), "implement of husbandry" means all of the
12following:
SB509-engrossed,11,1513 1. A self-propelled or towed vehicle that is manufactured, designed, or
14reconstructed to be used and that is exclusively used in the conduct of agricultural
15operations. An "implement of husbandry" may include any of the following:
SB509-engrossed,11,1616 a. A farm tractor.
SB509-engrossed,11,2217 b. A self-propelled combine; a self-propelled forage harvester; self-propelled
18fertilizer or pesticide application equipment but not including manure application
19equipment; towed tillage, planting, and cultivation equipment and its towing power
20unit; or another self-propelled vehicle that directly engages in harvesting farm
21products, directly applies fertilizer, spray, or seeds but not manure, or distributes
22feed to livestock.
SB509-engrossed,11,2423 c. A farm wagon, farm trailer, manure trailer, or trailer adapted to be towed by,
24or to tow or pull, another implement of husbandry.
SB509-engrossed,12,4
12. A combination of vehicles in which each vehicle in the vehicle combination
2is an implement of husbandry as described in subd. 1. or in which an implement of
3husbandry described in subd. 1. c. is towed by a farm truck, farm truck tractor, or
4motor truck.
SB509-engrossed,12,55 (b) "Implement of husbandry" does not include any of the following:
SB509-engrossed,12,66 1. An agricultural commercial motor vehicle.
SB509-engrossed,12,87 2. A vehicle that, notwithstanding s. 340.01 (8), is a commercial motor vehicle
8under 49 CFR 390.5.
SB509-engrossed,8 9Section 8. 341.01 (2) (am) of the statutes, as affected by 2013 Wisconsin Act
10103
, is repealed.
SB509-engrossed,9 11Section 9. 341.05 (17) of the statutes is amended to read:
SB509-engrossed,12,1312 341.05 (17) The vehicle is an implement of husbandry or an agricultural
13commercial motor vehicle
.
SB509-engrossed,10 14Section 10. 346.05 (1) (g) of the statutes is created to read:
SB509-engrossed,12,2315 346.05 (1) (g) If the vehicle is a wide implement of husbandry, as defined in s.
16347.24 (3) (a), being operated in compliance with any applicable requirement under
17s. 347.24 (3), 347.245 (1), or 347.25 (2g), and the vehicle is operated as much as
18practicable on the right half of the roadway and in the right-hand lane of a 3-lane
19highway, a portion of the vehicle may extend over the center of the roadway into any
20lane intended for travel in the opposite direction and may extend into any passing
21lane of a 3-lane highway. A wide implement of husbandry operated as described in
22this paragraph is subject to any restriction under ss. 346.06, 346.09 (2) and (3), and
23346.59.
SB509-engrossed,11 24Section 11. 346.09 (1) of the statutes is amended to read:
SB509-engrossed,13,12
1346.09 (1) Upon any roadway where traffic is permitted to move in both
2directions simultaneously, the operator of a vehicle shall not drive to the left side of
3the center of the roadway in overtaking and passing another vehicle proceeding in
4the same direction unless such left side is clearly visible and is free of oncoming
5traffic for a sufficient distance ahead to permit such overtaking and passing to be
6done in safety. In no case when overtaking and passing on a roadway divided into
74 or more clearly indicated lanes shall the operator of a vehicle drive to the left of the
8pavement marking indicating allocation of lanes to vehicles moving in the opposite
9direction or, in the absence of such marking, to the left of the center of the roadway.
10Except as provided in sub. (3) (b) and s. 346.05 (1) (g), in no case shall the operator
11of a vehicle drive in a lane when signs or signals indicate that such lane is allocated
12exclusively to vehicles moving in the opposite direction.
SB509-engrossed,12 13Section 12. 346.09 (3) (b) of the statutes is amended to read:
SB509-engrossed,13,1814 346.09 (3) (b) The operator of a vehicle may drive on the left side of the center
15of a roadway on any portion thereof which has been designated a no-passing zone,
16as described in par. (a), to overtake and pass, with care, any vehicle , except an
17implement of husbandry or agricultural commercial motor vehicle,
traveling at a
18speed less than half of the applicable speed limit at the place of passing.
SB509-engrossed,13 19Section 13. 346.13 (1), (2) and (3) of the statutes are amended to read:
SB509-engrossed,13,2320 346.13 (1) The Except as provided in sub. (4), the operator of a vehicle shall
21drive as nearly as practicable entirely within a single lane and shall not deviate from
22the traffic lane in which the operator is driving without first ascertaining that such
23movement can be made with safety to other vehicles approaching from the rear.
SB509-engrossed,14,5 24(2) Upon Except as provided in s. 346.05 (1) (g), upon a 2-way roadway which
25is divided into 3 lanes the operator of a vehicle may not drive in the center lane except

1when overtaking and passing another vehicle where the roadway is clearly visible
2and the center lane is clear of traffic within a safe distance, or in preparation for a
3left turn or U-turn, or where the center lane is at the time allocated exclusively to
4traffic moving in the direction the vehicle is proceeding and is marked or posted to
5give notice of the allocation.
SB509-engrossed,14,8 6(3) Notwithstanding sub. (2), but subject to sub. (4), when lanes have been
7marked or posted for traffic moving in a particular direction or at designated speeds,
8the operator of a vehicle shall drive in the lane designated.
SB509-engrossed,14 9Section 14. 346.13 (4) of the statutes is created to read:
SB509-engrossed,14,1510 346.13 (4) Upon a 2-way roadway with at least 2 lanes for travel in each
11direction, a wide implement of husbandry, as defined in s. 347.24 (3) (a), that is being
12operated in compliance with any applicable requirement under s. 347.24 (3), 347.245
13(1), or 347.25 (2g), and that is being operated as much as practicable within a single
14lane may, to the extent necessary, extend into another lane intended for travel in the
15same direction if it does not impede other vehicles approaching from the rear.
SB509-engrossed,14m 16Section 14m. 347.21 (1) of the statutes is amended to read:
SB509-engrossed,14,2417 347.21 (1) No person shall operate on a highway during hours of darkness any
18train of vehicles authorized by s. 348.08 (1) (d) unless there is mounted on each side
19of every vehicle in such train, including farm tractors and implements of husbandry,
20at least one lamp emitting a red or amber light visible from a distance of 500 feet to
21the side of the vehicle on which mounted or, in lieu thereof, at least one red or amber
22reflector or, notwithstanding s. 347.245, one slow moving vehicle emblem visible
23from all distances within 500 feet to 50 feet of the side of the vehicle when directly
24in front of lawful upper beams of headlamps.
SB509-engrossed,15 25Section 15. 347.21 (1m) of the statutes is amended to read:
SB509-engrossed,15,7
1347.21 (1m) No person shall operate on a highway during hours of darkness
2any train of vehicles authorized by s. 348.08 (1) (b) unless there is mounted on each
3side of every vehicle in such train, including farm tractors and implements of
4husbandry,
at least one lamp emitting a red or amber light visible from a distance
5of 500 feet to the side of the vehicle on which mounted or, in lieu thereof, at least one
6red or amber reflector visible from all distances within 500 feet to 50 feet of the side
7of the vehicle when directly in front of lawful upper beams of headlamps.
SB509-engrossed,16 8Section 16. 347.21 (2) of the statutes is repealed.
SB509-engrossed,17 9Section 17. 347.22 (2) of the statutes is amended to read:
SB509-engrossed,15,1310 347.22 (2) No Except as provided in s. 347.25 (2g), no person shall operate or
11park a farm tractor, self-propelled farm implement, or lightweight utility vehicle, as
12defined in s. 346.94 (21) (a) 2., upon a highway during hours of darkness with any
13lamp thereon showing any light to the rear other than red or amber in color.
SB509-engrossed,18 14Section 18. 347.24 (3) of the statutes is created to read:
SB509-engrossed,15,1815 347.24 (3) (a) In this subsection, "wide implement of husbandry" means any
16implement of husbandry that has a total width in excess of 15 feet or that partly
17extends, when operated primarily on the right half of the roadway, over the center
18of the roadway into any lane intended for travel in the opposite direction.
SB509-engrossed,15,2219 (b) Except as provided in par. (bm), no person may operate on a highway any
20wide implement of husbandry manufactured before January 1, 2014, unless it is
21equipped with all of the following and any lamp or light required under this
22paragraph is lighted and visible at the time of operation:
SB509-engrossed,16,423 1. At least 2 amber flashing warning lamps, visible from both the front and rear
24of the implement of husbandry. When lighted, these lamps shall be capable of being
25seen and distinguished under normal atmospheric conditions during hours of

1darkness at a distance of 500 feet from the front and rear of the implement of
2husbandry. These lamps shall be mounted, as nearly as practicable, to indicate the
3extreme width of the implement of husbandry, but not more than 16 inches from the
4lateral extremities of the implement of husbandry.
SB509-engrossed,16,105 2. Red retroreflective conspicuity material, visible to the rear and mounted
6within 25 inches of, respectively, the extreme left and extreme right of the implement
7of husbandry and spaced as evenly as practicable. This conspicuity material shall
8be of such size and characteristics and so maintained as to be readily visible during
9the hours of darkness from all distances within 500 feet to 50 feet from the implement
10of husbandry when directly in front of lawful upper beams of headlamps.
SB509-engrossed,16,1811 3. At least 2 strips of yellow retroreflective conspicuity material visible to the
12front of the implement of husbandry. On the left and right sides of the implement
13of husbandry, the outer edge of at least one strip of this material shall be mounted
14within 16 inches of, respectively, the extreme left and extreme right of the implement
15of husbandry. This conspicuity material shall be of such size and characteristics and
16so maintained as to be readily visible during the hours of darkness from all distances
17within 500 feet to 50 feet from the implement of husbandry when directly in front of
18lawful upper beams of headlamps.
SB509-engrossed,16,2419 4. Subject to ss. 347.06 (1) and (3), 347.13 (2), and 347.22 (1), at least 2 red tail
20lamps mounted symmetrically to the rear of the implement of husbandry, or as close
21to the rear as practicable. These tail lamps are not required to be wired to light when
22headlamps or other lamps light. When lighted, these tail lamps shall be capable of
23being seen and distinguished under normal atmospheric conditions during hours of
24darkness at a distance of 500 feet from the rear of the implement of husbandry.
SB509-engrossed,17,3
1(bm) A person may operate on a highway, at times other than hours of darkness,
2a wide implement of husbandry manufactured before January 1, 2014, that does not
3comply with par. (b) if all of the following apply:
SB509-engrossed,17,54 1. The wide implement of husbandry is accompanied by an escort vehicle
5operating with hazard lights activated.
SB509-engrossed,17,96 2. Two orange or red flags, not less than 12 inches square, are attached to the
7rear of the wide implement of husbandry, or as close to the rear as practicable, in a
8manner that is clearly visible to the operator of a vehicle approaching from the rear
9and that marks the extreme left and extreme right of the implement of husbandry.
SB509-engrossed,17,2110 (c) In addition to any applicable requirement under par. (b) or (bm), if a wide
11implement of husbandry has a total width in excess of 22 feet, no person may operate
12the implement of husbandry on a highway unless the implement of husbandry is
13accompanied by an escort vehicle operating with hazard lights activated. If the
14implement of husbandry is being operated on a highway with only one lane for travel
15in each direction, the escort vehicle shall be operated ahead of the implement of
16husbandry on the highway. If the implement of husbandry is being operated on a
17highway with more than one lane for travel in each direction or on a 3-lane highway,
18the escort vehicle shall be operated behind the implement of husbandry on the
19highway. This paragraph does not apply to an implement of husbandry that is
20traveling between fields or between a farm and a field and is operated on the highway
21for a distance of 0.5 miles or less.
SB509-engrossed,18,222 (d) No person may operate on a highway any implement of husbandry
23manufactured on or after January 1, 2014, unless it is equipped with all lighting and
24marking devices with which the implement of husbandry was originally equipped by

1the manufacturer and all such lighting and marking devices are in good working
2order and visible at the time of operation.
SB509-engrossed,18,43 (e) The requirements under this subsection apply in addition to any applicable
4requirements under subs. (1) and (2) and ss. 347.21, 347.22, and 347.27.
SB509-engrossed,19 5Section 19. 347.245 (1) of the statutes is amended to read:
SB509-engrossed,18,246 347.245 (1) After January 1, 1970, no person may operate on a highway, day
7or night, any vehicle or equipment, any animal-drawn vehicle, or any other
8machinery, including all road machinery, that usually travels at speeds of less than
925 miles per hour or any vehicle operated under a special restricted operator's license
10issued under s. 343.135 or any lightweight utility vehicle, as defined in s. 346.94 (21)
11(a) 2., or any wide implement of husbandry, as defined in s. 347.24 (3) (a), that is
12manufactured before January 1, 2014,
unless there is displayed on the most
13practicable visible rear area of the vehicle or combination of vehicles, a slow moving
14vehicle (SMV) emblem as described in and displayed as provided in sub. (2). Any
15towed vehicle or machine is exempt from this provision if the towing vehicle is visible
16from the rear and is in compliance with this section. All road machinery is excluded
17when it is engaged in actual construction or maintenance work either guarded by a
18flagman or clearly visible warning signs. Except as provided in s. 347.21 (1), the
19requirement of the emblem shall be in addition to any lighting devices required or
20permitted by law. Mopeds and motor bicycles are excluded from the provisions of this
21section unless they are operated under a special restricted operator's license issued
22under s. 343.135. Electric personal assistive mobility devices are excluded from the
23provisions of this section. The SMV emblem need not be displayed on vehicles
24moving directly across the highway.
SB509-engrossed,20 25Section 20. 347.245 (5) of the statutes is amended to read:
SB509-engrossed,19,4
1347.245 (5) This section does not apply to any vehicle or combination of vehicles
2to the left rear of which is attached a yellow or amber flashing light at least 4 inches
3in diameter, except to a wide implement of husbandry, as defined in s. 347.24 (3) (a),
4that is manufactured before January 1, 2014
.
SB509-engrossed,21 5Section 21. 347.25 (2g) of the statutes is created to read:
SB509-engrossed,19,106 347.25 (2g) No person may operate on a highway any self-propelled implement
7of husbandry manufactured before January 1, 2014, and having a total width in
8excess of 12 feet, unless it is equipped with a 360-degree yellow or amber rotating
9strobe or beacon light, mounted at the highest practicable point, or 2 flashing amber
10lights visible to the front and rear, and the light or lights are activated.
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