Elements of a DUI Charge in Florida

Most people think a DUI charge comes down to one number on a breath test. It doesn’t. Florida law gives the state three separate ways to prove the same charge, and understanding which one the state is actually using changes how the case should be defended.

What are the three ways Florida can prove a DUI?

Section 316.193 of the Florida Statutes lays out a single offense — Driving Under the Influence — but gives the state three independent theories to prove it. You are guilty of DUI if you are driving or in actual physical control of a vehicle in this state and any one of the following is true:

First, you were “under the influence of alcoholic beverages, any chemical substance set forth in s. 877.111, or any substance controlled under chapter 893,” to the extent that your normal faculties were impaired. This is the impairment theory, and it does not require a breath or blood test at all. Officers prove it through field sobriety exercises, driving pattern, slurred speech, odor of alcohol, and the officer’s own observations.

Second, you had a blood-alcohol level of 0.08 grams or more per 100 milliliters of blood. Third, you had a breath-alcohol level of 0.08 grams or more per 210 liters of breath. These are the per se theories — the state does not need to prove impairment at all if the number is there. That is why the law says “when affected to the extent that normal faculties are impaired” only applies to the first theory. Once the state has a valid 0.08 or higher reading, the impairment element is irrelevant to a per se DUI.

This matters because the defense to an impairment case looks completely different than the defense to a per se case. If the state is relying on the officer’s observations, the fight is over the field sobriety exercises, the stop itself, and whether the officer’s account matches the body camera footage. If the state is relying on a breath or blood result, the fight moves to the machine’s maintenance records, the operator’s certification, and the chain of custody. A prosecutor’s charging document does not always make clear which theory they intend to rely on at trial, and that ambiguity itself can be worked to a defendant’s advantage.

What does “actual physical control” actually mean?

You do not have to be driving to be charged with DUI in Florida. The statute also covers a person who is in “actual physical control” of a vehicle. Florida courts have generally defined actual physical control as being physically in or on the vehicle and having the capability to operate it, regardless of whether the vehicle is actually in motion at the time.

This is where DUI law surprises people. Somebody who pulls into a parking lot to “sleep it off” can still be arrested for DUI if they are behind the wheel with the keys in reach, even with the engine off. Courts look at where you were sitting, where the keys were, and whether the vehicle was capable of being operated at that moment.

But the concept has real limits. In Maher v. Department of Highway Safety and Motor Vehicles, 13 Fla. L. Weekly Supp. 121a (Fla. 7th Cir. Ct. 2005) — a circuit court appellate ruling reviewing a license suspension — a Good Samaritan had removed the keys from the ignition and placed them on the hood of the vehicle before officers arrived. The court concluded that “no case has stretched the concept of physical control to encompass a situation where the vehicle is not running and the keys are not even inside the vehicle,” and found the arrest unlawful on those facts. As a circuit-level appellate decision, Maher is persuasive rather than binding statewide authority, but it illustrates how courts analyze the keys-and-capability question when the facts are pushed to the edge.

You should think through actual physical control scenarios carefully because they turn on specific, provable facts: Where were you sitting? Where were the keys? Was the engine running? Could the vehicle have been started and driven at that moment? These questions decide whether the “actual physical control” element can even be established, and they are frequently the weakest link in the state’s case when someone was arrested asleep in a parked car rather than pulled over while driving.

What are Florida’s DUI penalties by offense number?

Florida’s DUI penalty structure escalates sharply with each subsequent conviction, and it also escalates independently when a breath or blood-alcohol level of 0.15 or higher is involved, or when a minor was in the vehicle. Under section 316.193(2) and 316.193(4):

First conviction: a fine of $500 to $1,000, up to 6 months in jail, and up to 1 year of probation with a minimum of 50 hours of community service. Vehicle impoundment or immobilization of 10 days also applies. If the BAC/BAL was 0.15 or higher, or a minor was in the vehicle, the fine increases to $1,000–$2,000 and jail exposure increases to up to 9 months, with a mandatory ignition interlock device for at least 6 continuous months.

Second conviction: a fine of $1,000 to $2,000 and up to 9 months in jail. If the second conviction occurs within 5 years of the first, the law requires a mandatory minimum of 10 days in jail and a mandatory ignition interlock device for at least 1 year. If the elevated BAC/minor-passenger factors apply, the fine rises to $2,000–$4,000, jail exposure to up to 12 months, and the mandatory interlock period increases to at least 2 continuous years.

Third conviction: if it occurs within 10 years of a prior conviction, it is charged as a felony of the third degree, carrying a mandatory minimum of 30 days in jail and a mandatory ignition interlock device of at least 2 years. If the third conviction occurs more than 10 years after the prior one, it remains a misdemeanor-level fine structure of $2,000 to $5,000 with up to 12 months in jail, though the mandatory interlock still applies.

Fourth or subsequent conviction: always a felony of the third degree, regardless of how long ago the prior convictions occurred, with a fine of at least $2,000 and up to 5 years in prison.

Beyond criminal penalties, license revocation runs on its own separate track under section 322.28. A second conviction within 5 years carries a mandatory minimum 5-year revocation, a third conviction within 10 years carries a mandatory minimum 10-year revocation, and a fourth conviction results in permanent revocation — the Department of Highway Safety and Motor Vehicles is barred from ever reissuing a license.

When does a DUI become a felony?

Beyond the repeat-offender felony thresholds, section 316.193(3) makes DUI a felony any time someone else is seriously hurt or killed, regardless of whether it is a first offense. DUI causing serious bodily injury is a third-degree felony. DUI manslaughter — when the impaired driving causes a death — is a second-degree felony, but it is elevated to a first-degree felony if the driver knew or should have known the crash occurred and failed to render aid or report it as required under section 316.062, or if the driver has a prior DUI manslaughter conviction. DUI manslaughter carries a mandatory minimum of 4 years in prison.

This is why the facts of a DUI stop matter well beyond the breath test number. A first-time DUI with no injuries is a misdemeanor. The same set of facts with a collision and an injured passenger can become a felony charge with permanent record consequences, even without a single prior arrest.

What should you do if you’re facing a DUI charge?

Because Florida gives the state three separate theories of proof, a case that looks strong on the surface — a high breath-test number, for instance — can still have real defenses in how the stop was conducted, whether the machine was properly maintained and calibrated, whether the field sobriety exercises were administered correctly, and whether the “actual physical control” element can even be proven on cases involving a parked vehicle. The specific offense number, whether a minor was present, and whether anyone was injured all change the range of penalties in play, sometimes dramatically. Anyone facing a DUI charge should get the police report, breath or blood test records, and any body camera or dash camera footage reviewed by counsel before entering a plea.

Legally reviewed by Tonmiel Rodriguez · Last reviewed July 2026

Tonmiel Rodriguez is Board Certified in Criminal Trial Law by The Florida Bar and represents clients facing DUI and other criminal charges throughout Polk, Highlands, Hardee, Osceola, and Hillsborough Counties. If you or someone you know has been arrested for DUI, call The Rodriguez Law Office at (863) 774-4556 to discuss the case.