Some states have laws against riding a bicycle on a street or highway while under the influence of drugs or alcohol (cycling under the influence, or CUI). Other states apply traditional DUI/DWI laws to cycling while under the influence of drugs or alcohol. And some states don't have a specific CUI law, and don't apply traditional DUI/DWI laws to riding a non-motorized vehicle, such as a bicycle.
In Idaho, the laws that apply to driving under the influence (DUI) of alcohol or drugs do not explicitly include non-motorized bicycles. Idaho Code § 18-8004 defines DUI in the context of 'driving or being in actual physical control of a motor vehicle' while under the influence of alcohol, drugs, or any other intoxicating substances. Since a bicycle is not considered a motor vehicle, traditional DUI laws do not typically apply to cyclists. However, cyclists could potentially be charged under public intoxication or similar laws if their behavior is deemed to be a danger to themselves or others. It is important for cyclists to be aware that even if they are not subject to DUI laws, riding while impaired can still lead to legal consequences and pose serious safety risks.