Iowa’s driving laws changed more in the past year than they had in decades. New phone rules. New speed limits. And enforcement that’s no longer optional.
Whether you’ve lived in Iowa your whole life or just moved here, this guide breaks down what you need to know in plain language. No legal jargon. Just the facts.
What Are Iowa’s Driving Laws?
Iowa’s driving laws are rules set by the state that tell you how to operate a vehicle safely and legally. They cover everything from how fast you can drive to what you can and cannot do with your phone behind the wheel.
These laws come from Iowa Code Chapter 321, called “Motor Vehicles and Law of the Road.” They apply to every driver on public roads in the state. Simple as that.
Speed Limit Laws in Iowa
Default Speed Limits Just Changed
Here’s something most Iowa drivers don’t know yet. Iowa just raised its default speed limit. Governor Kim Reynolds signed Senate File 378 into law on June 1, 2026. The new limit takes effect July 1, 2026.
The default speed on most two-lane rural highways goes from 55 mph to 60 mph. That’s the biggest change to Iowa’s basic speed laws in years.
Interstates are not affected. Those stay at 70 mph. Divided highways generally remain at 65 mph. Residential areas stay at 25 mph. School zones stay at 25 mph too. Business districts stay at 20 mph.
So basically, if you drive in rural Iowa on a two-lane road, things are changing. Pay attention to posted signs as they get updated over the coming months.
Iowa Also Has a “Basic Speed Law”
Wondering what that means? It means you can get a ticket even if you’re under the posted limit.
Iowa law says you must always drive at a “careful and prudent speed” for current road conditions. Driving 55 mph in a blizzard? That could still be a violation. The law is that serious.
Speeding fines in Iowa range from $30 for going 1 to 5 mph over the limit, all the way up to $135 or more for going 20 mph over. Work zones double those penalties.
Iowa’s Hands-Free Driving Law
Okay, this one is important. This is the biggest new enforcement change for Iowa drivers in 2026.
What the Law Says
Iowa’s hands-free driving law officially went into full enforcement on January 1, 2026. The law itself started on July 1, 2025, but the first six months were a warning period. That grace period is over.
You cannot hold your phone while driving. Period. You can still use your phone for GPS or calls. But the device must be mounted and operated hands-free or voice-activated. Picking it up to tap the screen? That’s a violation.
What Happens If You Get Caught
If you’re pulled over for holding your phone, you can face a fine between $100 and $170. You can also be charged with a simple misdemeanor. If your phone use causes a crash that injures or kills someone, the penalties go up dramatically.
Hold on, this part is important. Officers no longer need another reason to pull you over. They can stop you just for holding your phone. Iowa State Patrol issued over 3,600 tickets just in the first three months of 2026. Enforcement is real. It’s happening.
Who Is Exempt
A few groups are exempt from the hands-free law. Police officers and emergency responders don’t have to comply while on duty. People operating farm equipment are also exempt. And in a genuine emergency, like calling 911, you can use your phone.
Pretty much everyone else has to follow the rule.
OWI Laws in Iowa (Drunk Driving)
Iowa calls it OWI, not DUI. OWI stands for Operating While Intoxicated. Most people know it as drunk driving, but it covers drugs too.
Legal Limits
The legal blood alcohol concentration (BAC) limit in Iowa is 0.08% for regular drivers. For commercial drivers with a CDL, the limit drops to 0.04%. For drivers under 21, the limit is essentially zero, with a cutoff at 0.02%.
You should also know this: Iowa’s OWI law includes any amount of a controlled substance in your body. That means even trace amounts of drugs can result in a charge. It’s a strict standard.
OWI Penalties
A first OWI offense in Iowa is a serious misdemeanor. You’re looking at a minimum of 48 hours in jail. The maximum is one year. Fines run from $625 to $1,250. Your license gets revoked for 180 days to one year. You’ll also need a substance abuse evaluation.
Think of it like this: a first offense already costs you in lost wages, legal fees, fines, and a suspended license. It adds up fast.
A second OWI offense is an aggravated misdemeanor. Penalties are more severe. A third offense becomes a Class D felony. Yes, a felony. That follows you for life.
Iowa uses a 12-year lookback period. That means any OWI conviction in the last 12 years counts against you when deciding if something is a first, second, or third offense.
Implied Consent
Iowa has an implied consent law. By driving in Iowa, you automatically agree to chemical testing if you’re lawfully arrested for OWI. Refusing a breath, blood, or urine test results in an automatic license revocation. One year for a first refusal. Longer for repeat refusals. Refusal can also be used as evidence against you in court.
First-Time Offenders: Deferred Judgment
Here’s something worth knowing. Iowa offers a deferred judgment option for some first-time OWI offenders. You must complete probation conditions. If you do, charges can be dropped without a conviction going on your record.
You’re not eligible if you refused the breath test, had a BAC of 0.15 or higher, caused bodily injury, or had a prior OWI conviction or deferred judgment.
Seatbelt and Child Safety Laws
Seatbelt Rules
Iowa requires drivers and front seat passengers to wear a seatbelt. Children under 12 must also be buckled, even in the back seat. Rear seat passengers up to age 18 must be secured by a safety belt.
A bill is currently moving through the Iowa Legislature that would extend the seatbelt requirement to all back seat passengers of any age. As of now, the current rules above apply.
Child Car Seat Laws
This is the part most parents need to pay close attention to. Iowa law is specific about car seat requirements based on age and size.
Children under one year old and under 20 pounds must be in a rear-facing child safety seat. Children ages one through five must be in a car seat or booster seat. Children ages six through eleven can use a car seat, booster seat, or a vehicle safety belt. Rear seat passengers up to 18 must wear a safety belt.
A violation of Iowa’s child restraint law carries a fine of $195. More importantly, it puts your child at risk.
The Move Over Law
You’re on the highway. You see flashing lights on the side of the road. What do you do?
Iowa law requires you to move over to the next available lane. If that’s not possible, slow down. This applies to blue, red, and amber flashing lights. That includes police cars, emergency vehicles, tow trucks, construction workers, and road maintenance crews.
Violating the move over law carries a fine of $135 plus surcharges and court costs. If your violation causes property damage, your license can be suspended for 90 days. If it causes bodily injury, suspension goes up to one year. If someone dies, you face a full one-year suspension plus an additional $1,000 fine.
Stay with me here. This law protects the people keeping Iowa’s roads safe. It’s one of the most important traffic laws you might not think about every day.
Right Turn on Red
Iowa allows right turns on red after a complete stop. You must yield to all cross traffic and pedestrians before turning. You cannot turn on red if a sign at the intersection prohibits it.
Left turns on red are only allowed when turning from a one-way street onto another one-way street.
Rolling stops at red lights are a violation. Recent enforcement in urban areas has increased, including camera monitoring at some intersections.
Passing and No-Passing Zones
Double solid yellow lines mean no passing. You cannot cross into the opposing lane to pass another vehicle. These markings appear on curves, hills, intersections, and bridges where you cannot see far enough ahead.
Passing in a no-passing zone can result in fines from $100 to $500 and two points on your driving record.
Iowa’s Point System
Iowa uses a point system to track driving behavior. Speeding and other moving violations add points to your record. Points stay for three years. If you accumulate six or more points in two years, you risk a suspension.
Drivers can attend an Iowa-approved defensive driving course to reduce points or avoid a suspension, subject to court approval.
How to Stay Legal on Iowa Roads
You’re not alone in finding these rules a lot to keep track of. Most people don’t realize how much changed in 2026. Here’s a simple rundown of what to do.
Mount your phone before you start driving. Set it to do not disturb. Never pick it up while moving. If you need GPS, use a holder and voice commands.
Know your speed limits. Rural two-lane highways are going to 60 mph on July 1, 2026. School zones and residential streets stay at 25 mph. Slow down for weather, traffic, and road conditions regardless of posted limits.
Always buckle up. Make sure every child is in the right seat for their age and size. And when you see flashing lights on the side of the road, move over.
If you ever have a question about a ticket or a potential OWI charge, talk to a licensed attorney in Iowa. These things have real consequences.
Frequently Asked Questions
Can I use my phone for GPS while driving in Iowa?
Yes, but only if the phone is mounted and you use it hands-free. You cannot hold the device or tap the screen while driving.
What is the legal BAC limit in Iowa?
For most drivers, it’s 0.08%. Commercial drivers must stay under 0.04%. Drivers under 21 have a limit of 0.02%.
What happens if I refuse a breathalyzer in Iowa?
Your license will be automatically revoked for one year on a first refusal. Your refusal can also be used as evidence against you in court.
Does Iowa’s new 60 mph speed limit apply to interstates?
No. Interstates stay at 70 mph. The new 60 mph default applies to two-lane rural roads and highways that previously had a 55 mph default limit.
What is the fine for not having a child in a car seat in Iowa?
Violating Iowa’s child restraint law carries a fine of $195. The law applies to the driver of the vehicle, even if the driver is not the child’s parent.
How many points does a speeding ticket add in Iowa?
The number of points varies by violation type. Accumulating six or more points within two years can result in a license suspension.
Final Thoughts
Iowa’s driving laws in 2026 are stricter and more actively enforced than ever before. The hands-free law is being ticketed statewide. Speed limits are changing. OWI penalties remain serious at every level.
The good news? All of this is easy to follow once you know the rules. Keep your phone in a mount. Know your speed limits. Buckle everyone in. And move over for those flashing lights.
Now you know the basics. Stay safe out there, and when in doubt, check the Iowa DOT website or talk to a local attorney.
