Here are some more laws, that are also in the regulations. Most seem relevant.
It is illegal to ski while under the influence of alcohol or drugs, including prescription drugs
Boating Under the Influence
Wisconsin law prohibits anyone from operating a motorboat or manipulating water skis or similar devices while under the influence of alcohol or drugs.
• Anyone who operates or attempts to operate a vessel is deemed to have given consent to an alcohol and/or drug test.
• It is illegal for a person to operate a motorboat or use water skis, a surfboard, or other device if he or she has a blood alcohol concentration of 0.08% or greater
Alcohol and drugs cause impaired balance, blurred vision, poor coordination, impaired judgment, and slower reaction times.
Improper speed or distance is not maintaining a proper
speed and/or distance while operating a vessel. Specifically, it is illegal to:
• Operate a vessel at a distance from other vessels or at a speed that exceeds safe and reasonable limits given the waterway traffic, marked speed limits, weather, and other boating conditions
• Operate a vessel repeatedly in a circuitous manner within 200 feet of another vessel or person in the water
Negligence or Reckless Operation
Negligent or reckless operation of a vessel or the reckless manipulation of water skis, a surfboard, or a similar device is operating in a manner that causes danger to the life, limb, or property of any person.
Operating a vessel in a manner that creates hazardous wave or wake conditions while approaching or passing another vessel
Safety Tip:
Your wake can cause damage to property and other vessels.
Always take into account the effects your wake might have when
adjusting your speed.