Protecting Your Rights And Your Future

Iowa OWI: 3 things to know before getting behind the wheel

On Behalf of | Dec 17, 2025 | OWI/DUI |

Even responsible drivers can face an OWI charge if they get behind the wheel while impaired. Life is busy, and many people take prescription medication or other controlled substances without realizing how it can affect driving. Iowa law does not make exceptions for impairment caused by these substances, and a single mistake can have lasting consequences. Understanding OWI rules before you drive can help you make informed decisions and keep yourself and others safe. Here are three things you need to know to help you protect your future. 

1. Medical marijuana use does not protect you from OWI


Iowa tightly regulates medical marijuana use. Possessing or consuming marijuana is allowed only under strict conditions, and recreational use remains illegal. Even if you have a medical marijuana card, driving while impaired or having any trace of the substance in your system is prohibited. Law enforcement considers operating a vehicle under the influence of any controlled substance an OWI offense. 

2. Zero tolerance rules apply


Iowa enforces zero-tolerance policies for drivers under 21 and commercial drivers. For those under 21, having a blood alcohol content (BAC) of 0.02% or higher, or any detectable amount of THC or other controlled substances, while driving can trigger OWI charges. 

 

3. Penalties are serious and long-lasting


A first-time OWI for driving under the influence of alcohol, marijuana or other controlled substances can bring fines, license suspension and even jail time. Repeat offenses carry harsher consequences, including longer suspensions, higher fines and potential prison sentences. A conviction also stays on your criminal record, affecting employment, housing and other areas of life. 

Protect your future with the right guidance

Facing an OWI charge can disrupt your daily life, from your work schedule to your ability to drive safely. You might be unsure about the next steps or how this charge could affect your future. Consulting an experienced attorney early can help you understand the process, explore your options and protect your rights.  With the right support, you can address the situation effectively and take concrete steps to minimize its impact on your life.

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