From chapter 9 of the Idaho Motorcycle Rider’s Handbook

Idaho Motorcycle Alcohol, Drugs and Fatigue Practice Test

BAC, Idaho DUI law, test refusal and riding tired.

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What share of riders killed in motorcycle crashes had been drinking, according to national studies?

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Alcohol and Idaho Law
In Idaho it is DUI with a BAC of .02 or more under age 21, .04 or more in a commercial vehicle, or .08 or more at 21 and older; a BAC of .20 or more brings stiffer penalties, and you can still be convicted of DUI below .08. p. 80
Penalties When Completing & Failing a Breath Test
For a first Idaho DUI conviction at 21 or older: up to six months in jail, a fine, and a license suspension of at least 90 and up to 180 days, with no driving at all for the first 30 days. p. 80-81
Alcohol Test Refusal
Under Idaho's implied consent law, anyone who drives or is in control of a motor vehicle has agreed to a BAC or drug test. p. 81
Administrative License Suspensions
Failing an evidentiary test over the legal limit after a DUI arrest brings an ITD Administrative License Suspension (ALS), a civil penalty separate from criminal charges. p. 82
Minimize the Risks
Alcohol affects judgment first and can give a false sense of confidence: a rider may feel they ride as well or better than sober while actually taking greater risks with impaired skills. The best way to minimize the risk is to separate drinking and riding. p. 82
Make an Intelligent Choice
Make an intelligent choice: don't drink (setting a limit or pacing yourself are poor alternatives). p. 83

Practice material, not the official test: check every answer in your state's current handbook. Disclaimer