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 Iowa, the laws that apply to driving under the influence of alcohol or drugs (DUI) do not directly apply to bicyclists. Iowa's Operating While Intoxicated (OWI) statute, which is the state's equivalent to DUI/DWI laws, is specific to operating motor vehicles and does not include bicycles. Therefore, in Iowa, an individual cannot be charged with an OWI solely for riding a bicycle while under the influence of alcohol or drugs. However, it is important to note that bicyclists can still be subject to other laws and local ordinances that may prohibit certain behaviors while riding a bicycle, and riding under the influence could potentially lead to charges such as public intoxication or similar offenses depending on the circumstances.