Wisconsin Code § 167.33

Alpine sports
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(1) DEFINITIONS. In this section:

(ac) “Affiliate” means:
1. With respect to a partnership, each partner thereof.
2. With respect to a limited liability company, each member
thereof.
3. With respect to a corporation, each officer, director, principal stockholder, and controlling member thereof.
(ag) “Alpine sport” means skiing, sledding, biking, or tubing.
(ar) “Biking” means riding a bicycle within a ski area after
purchasing or receiving a ticket, pass, or license from the ski area
operator.
(b) “Competition” means any event authorized by a ski area
operator, or by an agent of a ski area operator, that involves a
comparison of skills used in one or more alpine sports. “Competition” includes training sessions for such an event.
(dm) “Freestyle terrain” means an area that includes halfpipes, terrain parks, terrain gardens, freestyle courses, or other
terrain features. Freestyle terrain does not include an area
groomed with natural and man-made surface variations to aid
new skiers in learning to ski or natural or man-made mogul
fields.
(e) “Hazard” means any man-made or natural obstacle or hazard. “Hazard” includes ridges, sharp corners, jumps, bumps,
moguls, valleys, dips, cliffs, ravines, and bodies of water.
(f) “Lift” means any aerial tramway or lift, a surface lift, a
tow, or a conveyor used by a ski area operator to transport participants in alpine sports at a ski area.
(g) “Participant in an alpine sport” means an individual who
has a pass or ticket to engage in an alpine sport and who is engaged in an alpine sport or is walking or otherwise traveling
within a ski area for purposes of engaging in the sport. “Participant in an alpine sport” also means an individual who is present
at a ski area to observe others engaged in an alpine sport or who is
a passenger on a lift. “Participant in an alpine sport” includes an
individual that is an employee of a ski area operator when he or
she is acting outside the scope of his or her employment.
(h) “Ski area” means trails, terrains, and other outdoor areas
that are used by individuals engaged in alpine sports and that is
administered as a single enterprise by a ski area operator.
(i) “Ski area infrastructure” means lifts and any associated
components, snowmaking equipment and any associated components, and utility structures, buildings, huts, signs, lift mazes,
fences, or other structures located within a ski area.
(j) “Ski area operator” means a person that owns or is responsible for operating a ski area or its affiliates. “Ski area operator”
includes the employees and agents of a ski area operator.
(k) “Ski area vehicle” means a motorized vehicle used in the
operation and maintenance of a ski area or used as transportation
within a ski area.
(L) “Skiing” means downhill skiing, alpine skiing, nordic skiing, cross-country skiing, ski biking, telemarking, snowshoeing,
or snowboarding.
(m) “Sledding” means sliding down a prepared course on
sleds, toboggans, or comparable devices. “Sledding” excludes
tubing.
(n) “Snowmaking equipment” includes pipes, hoses, hydrants, snow guns, fans, wands, pumps, and any other equipment
associated with making snow.
(om) “Terrain features” means man-made features that include boxes, jumps, hits, jibs, rails, rollers, half pipes, picnic tables, logs, and pipes.
(p) “Tree skiing area” means an area open to skiing, that is not
groomed for skiing, and that is forested.
(q) “Tubing” means sliding down a prepared course on inflatable tubes, minibobs, or comparable devices.
(2) CONDITIONS AND RISKS OF ALPINE SPORTS. For purposes
of this section, conditions and risks consist of all of the following:
(a) Changes in weather or visibility.
(b) The presence of surface or subsurface conditions, including any of the following:
1. Snow, ice, crust, slush, soft spots, holes, grooves, bare
spots, mud, loose dirt, cuts, rocks, boulders, water, puddles,
creeks, streams, cliffs, drop-offs, or tracks from foot traffic or ski
area vehicles.
2. Forest growth or debris, including stumps, logs, or brush.
(c) Ridges, sharp corners, bumps, moguls, valleys, rollers,
dips, cliffs, ravines, and double fall lines.
(d) Variations in the difficulty of terrain, surface conditions,
or subsurface conditions on a single trail or terrain or among
trails or terrains that are designated the same level of difficulty at
the ski area or at another ski area.
(e) The risk of injury or death on trails and terrains that fall
away or drop off toward hazards.
(f) The risk of collision with other participants in alpine
sports, employees of a ski area operator, or ski area infrastructure.
(g) Variation in the location, construction, configuration, or
steepness of trails or terrains.
(h) The greater risk of collision, injury, or death in treed areas,
in areas where competitions are held, and in areas of freestyle
terrain.
(3) DUTIES OF SKI AREA OPERATORS; SIGNAGE; NOTICE. (a)
Notice on tickets required. Except as provided in par. (am), each
ski area operator shall print on each ticket or season pass that it issues to participants in alpine sports the following warning:
“WARNING: Under Wisconsin law, each participant in an
alpine sport assumes the risk of injury or death to person or injury
to property resulting from the conditions and risks that are considered to be inherent in an alpine sport, has a number of duties
that must be met while engaging in an alpine sport, and is subject
to limitations on the ability to recover damages from a ski area
operator for injuries or death to a person or to property. A complete copy of this law is available for review at the main site
where tickets to this ski area are sold.”
(am) Exemption. A ski area operator may sell, distribute, and
use tickets or season passes printed before March 2, 2016, until
its stock of those tickets or passes are exhausted. A ski area operator that sells, distributes, or uses such tickets or passes shall post
a notice at each location where the tickets or passes are sold, distributed, or used that informs each recipient of the ticket or pass
that he or she is engaging in an alpine sport, as defined in s.
167.33 (1) (ag), and that the definition for snow sport, as used on
the ticket or pass, has been amended. The notice shall indicate
that a complete copy of s. 167.33 is available for review at the
main site where the ski area operator sells tickets.
(b) Signs required; generally. Each ski area operator shall
post and maintain the following signs:
1. A sign that is at least 10 square feet in size at or near each
of the sites where tickets to the ski area are sold, at or near each of
the entrances or lift loading areas for areas that are open to alpine
sports, and at or near each area open to sledding, biking, or tubing
which is not served by a lift. The sign shall contain the following
warning:
“WARNING — ASSUMPTION OF RISKS: Under Wisconsin law, each participant in an alpine sport is considered to have
accepted and to have knowledge of the risk of injury or death to
person or injury to property that may result. Under Wisconsin
law, each participant in an alpine sport has the duty to take the
precautions that are necessary to avoid injury or death to person
or injury to property. Wisconsin law sets forth certain other lim-

itations on the liability of ski area operators for injuries or death
to person or injury to property. A complete copy of this law is
available for review at the main site where tickets to this ski area
are sold.”
2. A sign that is at least 3 square feet in size at or near each of
the sites where tickets to the ski area are sold that contains the
words: “Helmets are recommended” or “Consider wearing a
helmet.”
(c) Copies of law. Each ski area operator shall post and maintain a current copy of all of the provisions of this section at the
main site where tickets to the ski area are sold and shall make a
copy of it for any individual upon request.
(d) Signs required; skiing or sledding areas. In addition to the
sign required under par. (b), each ski area operator shall post and
maintain a sign that is at least 10 square feet in size at or near each
entrance to a loading area of a lift that serves areas open to skiing
or sledding. The sign shall contain the following warning:
“WARNING — DUTIES OF INDIVIDUALS ENGAGED IN
SKIING OR SLEDDING: Under Wisconsin law, each individual
engaged in skiing or sledding has a duty to do all of the following:
1. Obey all posted warnings and signs.
2. Keep off of closed trails and out of closed areas.
3. Know the range of his or her ability and engage in skiing
or sledding within that ability.
4. Assess the difficulty of the trails and terrains that are open
to skiing or sledding.
5. Maintain control of his or her speed and direction.
6. Be able to stop or avoid other individuals or objects.
7. Yield to other individuals engaged in skiing or sledding
who are ahead or who are down the slope.
8. Not stop at a point that will result in the individual obstructing a trail or not being visible from above.
9. Yield to other individuals engaged in skiing or sledding
who are uphill when starting downhill or when merging onto a
trail.
10. Be able to safely board, ride, and deboard any lift serving
an area open to skiing or sledding.
11. Board and deboard a lift only at designated sites.”
(e) Signs required; tubing areas. In addition to the sign required under par. (b), each ski area operator shall post and maintain a sign that is at least 10 square feet in size at or near each entrance to a loading area of a lift that serves areas open to tubing or
at or near an entrance of an area open to tubing that is not served
by a lift. The sign shall contain the following warning:
“WARNING — DUTIES OF INDIVIDUALS ENGAGED IN
TUBING: Under Wisconsin law, each individual engaged in tubing has a duty to do all of the following:
1. Obey all posted warnings and signs.
2. Keep out of closed areas.
3. Know the range of his or her ability and engage in tubing
within that ability.
4. Assess the difficulty of the terrain that is open to tubing.
5. Maintain control of the speed and direction of the tube or
other device that is being used.
6. Comply with any posted limits imposed on the number of
passengers or on the amount of weight of the tube or other device
while it is being ridden.
7. Be able to safely board, ride, and deboard any lift serving
an area open to tubing.
8. Board and deboard a lift only at designated sites.
9. Yield to other individuals engaged in tubing who are ahead
or who are down the slope.
10. Look uphill and yield to oncoming tubes before leaving
the bottom of the hill at the end of a run.
(em) Signs required; biking areas. In addition to the sign required under par. (b), each ski area operator offering biking shall
post and maintain a sign that is at least 10 square feet in size at or
near each entrance to a loading area of a lift that serves areas open
to biking or at or near an entrance of an area open to biking that is
not served by a lift. The sign shall contain the following warning:
“WARNING — DUTIES OF INDIVIDUALS ENGAGED IN
BIKING: Under Wisconsin law, each individual engaged in biking has a duty to do all of the following:
1. Obey all posted warnings and signs.
2. Keep out of closed areas.
3. Know the range of his or her ability and engage in biking
within that ability.
4. Assess the difficulty of the trails and terrains, including
natural and man-made features, that are open to biking. Where
possible, walk the trail or features prior to biking.
5. Maintain control of his or her speed and direction.
6. Comply with any posted limits that are imposed on the
type of bike or other equipment that may be ridden on a trail or
portion of the ski area.
7. Be able to stop or avoid other individuals or objects.
8. Yield to other individuals engaged in biking who are
ahead or who are down the slope.
9. Be able to safely board, ride, and deboard any lift serving
an area open to biking.
10. Board and deboard a lift only at designated sites.
11. Look uphill and yield to oncoming bikes before leaving
the bottom of the hill at the end of the run or when entering a trail
or slope.”
(f) Signs required; trails and terrains. Each ski area operator
shall designate the trails that are open for skiing or biking in its
ski area and shall determine the difficulty level of each trail. The
ski area operator shall post and maintain a sign at or near the beginning of each trail. The sign shall contain the name of the trail
and all of the applicable wording and emblems specified in this
paragraph to describe the difficulty level of the trail or terrain.
The sign shall be at least 4 square feet in size. Each sign shall
contain one or more of the following designations that are
applicable:
1. The word “easier” with an emblem consisting of a green
circle.
2. The words “difficult” or “more difficult” with an emblem
consisting of a blue square.
3. The words “most difficult” with an emblem consisting of
a black diamond.
4. The word “expert” or “extreme” with an emblem consisting of 2 black diamonds.
5. The words “freestyle terrain” with an emblem consisting
of an orange oval.
6. The words “tree skiing — caution.” The sign shall contain
the additional statement: “This back country trail is not groomed
or patrolled — Never ski here alone.”
(g) Areas of freestyle terrain; signs and barricades required.
A ski area operator may designate an area as an area of freestyle
terrain. A ski area operator that designates an area of freestyle
terrain shall construct and maintain a barricade with fencing, roping, or similar means at the entrance to such an area. The opening
in the barricade may not be wider than 30 feet. The ski area operator shall post and maintain a sign at or near the entrance of the
area of freestyle terrain that is at least 3 square feet in size. The
sign shall contain emblems consistent with signage recom-

mended by a national ski areas association for use in areas of
freestyle terrain. The sign shall contain the words “freestyle
terrain.”
(h) Lifts; signs required. For each lift that is used by individuals engaged in skiing and that does not serve any trail that is described under par. (f) as “easier,” the ski operator shall post and
maintain, at or near the loading area for the lift a sign that is at
least 10 square feet in size near or at the entrance of the loading
area. The sign shall contain the following warning:
“WARNING: This lift does not serve any trails that are “easier” (marked with a green circle emblem). All of the trails served
by this lift are “difficult” or “more difficult” (marked with a blue
square emblem), “most difficult” (marked with a black diamond
emblem), “expert” or “extreme terrain” (marked with an emblem
consisting of 2 black diamonds), or “freestyle terrain” (marked
with an orange oval).”
(i) Ski area vehicles; signs required. A ski area operator shall
post and maintain signs on various trails or lift towers throughout
the ski area that are at least 4 square feet in size that contain the
following statement: “Caution: Ski area vehicles may be in operation at any time.”
(j) Variation of signs. 1. In lieu of posting and maintaining
each of the separate signs required under par. (b) and par. (d), (e),
or (em), a ski area operator may post and maintain a single sign
that is at least 12 square feet in size and that contains all of the required warnings.
2. A ski area operator may, in a ski area with fewer than 100
acres in use for an alpine sport vary from the specific wording,
size, and location requirements for signs specified under this subsection, but any variation may not preclude a reasonably prudent
participant in an alpine sport from finding or understanding the
contents of the sign.
(4) DUTIES OF SKI AREA OWNERS; OTHER DUTIES. (a) Maps.
Each ski area operator shall post and maintain a map of the trails
and terrains in the ski area that are designated for any alpine sport
at all of the sites where tickets to the ski area are sold if the ski
area has more than 3 trails. The map shall contain the names of
each trail or terrain and a description of the level of difficulty for
each trail as determined by the ski area operator under sub. (3)
(f). The sign shall be at least 32 square feet in size.
(ag) Markings. Each ski area operator shall mark hydrants,
water pipes, and any other man-made structures on a ski area that
are not readily visible to participants in an alpine sport under conditions of ordinary visibility from a distance of at least 100 feet.
A ski area operator may use any type of marker, including a
wooden or bamboo pole, flag, or sign if the marker is visible from
a distance of 100 feet and if the marker itself does not constitute a
serious hazard to participants in an alpine sport. Variations in
steepness or terrain, whether natural or as a result of slope design,
snowmaking, or grooming operations, including roads, catwalks,
or other terrain modifications, are not man-made structures for
the purpose of this paragraph.
(ar) Padding policies. A ski area operator shall adopt a written policy determining which man-made ski area infrastructures
require protective padding and determining the type, height,
thickness, and color of the padding. The policy shall take into
consideration factors including the infrastructure’s size and location at the ski area and its visibility to the public under conditions
of normal visibility.
(b) Ski area vehicles. 1. Each ski area operator shall ensure
that each ski area vehicle that is present on a trail during the hours
in which a lift is being operated shall display all of the following:
a. A flashing light on or near the top of the ski area vehicle
whenever the ski area vehicle’s engine is on.
b. If the ski area vehicle is an all-terrain vehicle, a snowmobile, or a similarly sized motorized vehicle, in addition to the
flashing light as specified in subd. 1., a red or orange flag that is
at least 40 square inches in size and that is mounted at least 5 feet
from the bottom of the tracks or tires.
2. If any vehicular grooming operations take place on a ski
trail during hours in which a lift is being operated, the ski area operator shall close that trail to the public at the top entrance to the
trail until the vehicular grooming operations are complete on that
trail. If a groomer is traversing part of a ski area that is not part of
a ski trail during hours in which a lift is being operated, the ski
area operator shall provide an escort for the groomer or equip the
groomer with emergency lights and an audible warning system to
warn guests of the approaching groomer.
3. A ski area operator shall have a written policy that specifies the training required for anyone to operate a snowmobile or
an all-terrain vehicle within the ski area, and shall have a written
policy addressing recommended routes for snowmobiles or allterrain vehicles to follow when used during the hours in which a
lift is being operated.
4. No ski area operator may allow anyone under the age of 18
to operate a snowmobile or an all-terrain vehicle within the ski
area.
5. Any employee of a ski area operating a snowmobile or an
all-terrain vehicle shall possess a valid driver’s license.
6. A ski area operator shall prohibit the use of privately
owned snowmobiles or all-terrain vehicles within the ski area
during the hours in which a lift is being operated.
7. The operator of a snowmobile or an all-terrain vehicle may
not operate the vehicle at a rate of speed greater than is
reasonable.
8. Whenever possible, the person operating a snowmobile or
an all-terrain vehicle within a ski area during the hours in which
a lift is being operated shall give skiers the right-of-way.
(c) Lift inspections. Annually, a ski area operator shall have
all of the lifts located in its ski area inspected by a qualified lift
inspector to determine whether the lift is in compliance with the
rules promulgated by the department of safety and professional
services.
(d) Lift inspectors. In order to be a qualified lift inspector for
purposes of par. (c), an individual shall be either or both of the
following:
1. An individual authorized by the department of safety and
professional services to make inspections of lifts pursuant to ch.
101.
2. An individual who has knowledge of the requirements of
the rules specified in par. (c) and of the design and operation of
lifts and who has one of the following:
a. A degree of engineering from a recognized university.
b. Experience as an inspector of lifts for an insurance company that has provided liability insurance coverage to any ski
area.
(5) DUTIES OF INDIVIDUALS ENGAGED IN ALPINE SPORTS. (a)
Safety rules; skiing and sledding. Each individual engaged in skiing or sledding at a ski area has a duty to do all the following:
1. Obey all posted warnings and signs.
2. Keep off of closed trails and out of closed areas.
3. Know the range of his or her ability and engage in skiing
or sledding within that ability.
4. Assess the difficulty of the trails and terrains that are open
to skiing or sledding.
5. Maintain control of his or her speed and direction.
6. Comply with any posted limits that are imposed on the
number of passengers or on the amount of weight of the sled or
other sledding device while it is being ridden.

7. Be able to stop or avoid other individuals or objects.
8. Yield to other individuals engaged in skiing or sledding
who are ahead or who are down the slope.
9. Not stop at a point that will result in the individual obstructing a trail or not being visible from above.
10. Yield to other individuals engaged in skiing or sledding
who are uphill when starting downhill or merging onto a trail.
11. Be able to safely board, ride, and deboard any lift serving
an area open to skiing or sledding.
12. Board and deboard a lift only at designated sites.
13. If involved in a collision with another participant in an
alpine sport that results in injury or death, not leave the vicinity of
the collision before giving his or her name and current address to
an employee of the ski area operator or a member of the ski patrol, except for the purpose of securing aid for a person injured in
the collision. A person who leaves the scene of the collision for
the purpose of securing aid shall give his or her name and current
address after securing the aid.
(b) Safety rules; tubing. Each individual engaged in tubing at
a ski area has a duty to do all of the following:
1. Obey all posted signs and warnings.
2. Keep out of closed areas.
3. Know the range of his or her ability and engage in tubing
within that ability.
4. Assess the difficulty of terrain that is open to tubing.
5. Maintain control of his or her speed and direction.
6. Comply with any posted limits that are imposed on the
number of passengers or on the amount of weight of the tube or
other tubing device while it is being ridden.
7. Be able to safely board, ride, and deboard a lift serving an
area open to tubing.
8. Board and deboard a lift only at designated sites.
9. Yield to other individuals engaged in tubing who are ahead
or who are down the slope.
10. Look uphill and yield to oncoming tubes before leaving
the bottom of the hill at the end of a run.
11. If involved in a collision with another participant in an
alpine sport that results in injury or death, not leave the vicinity of
the collision before giving his or her name and current address to
an employee of the ski area operator or a member of the ski patrol, except for the purpose of securing aid for a person injured in
the collision. A person who leaves the scene of the collision for
the purpose of securing aid shall give his or her name and current
address after securing the aid.
(c) Safety rules; biking. Each individual engaged in biking at
a ski area has a duty to do all the following:
1. Obey all posted warnings and signs.
2. Keep out of closed areas.
3. Know the range of his or her ability and engage in biking
within that ability.
4. Assess the difficulty of the trails and terrains, including
natural and man-made features, that are open to biking. Where
possible, walk the trail or features prior to biking.
5. Maintain control of his or her speed and direction.
6. Comply with any posted limits that are imposed on the
type of bike or other equipment that may be ridden on a trail or
portion of the ski area.
7. Be able to stop or avoid other individuals or objects.
8. Yield to other individuals engaged in biking who are
ahead or who are down the slope.
9. Be able to safely board, ride, and deboard any lift serving
an area open to biking.
10. Board and deboard a lift only at designated sites.
11. Look uphill and yield to oncoming bikes before leaving
the bottom of the hill at the end of the run and upon entering a
trail or slope.
12. If involved in a collision with another participant in an
alpine sport that results in injury or death, remain in the vicinity
of the collision until he or she gives his or her name and current
address to an employee of the ski area operator or a member of
the bike patrol, except to secure aid for a person injured in the collision. A person who leaves the vicinity in order to secure aid
shall provide his or her name and current address after securing
the aid.

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