If you only remember one point about DUI penalties in Florida, remember this: BAC limits: 0.08% for adults; 0.04% for commercial drivers; zero-tolerance for drivers under 21; enhanced penalties at 0.15%+. A first offense: First-offense DUI is typically a misdemeanor with fines, possible jail up to 6 months (longer if BAC ≥ 0.15% or a minor was in the vehicle), probation, DUI school, license revocation, and often ignition interlock. Felony threshold: A third DUI within 10 years is a third-degree felony; a fourth DUI is a third-degree felony regardless of the lookback in many charging postures; DUI manslaughter is a felony. Procedure, examples, and the opinions below hang off Fla. Stat. § 316.193. Lookback: Prior DUI convictions within 10 years (and lifetime counts for some felony enhancements) escalate penalties.. Ignition interlock: Ignition interlock is required for many DUI convictions, especially high-BAC, repeat, and refusal-related cases, as a condition of hardship or reinstatement.
First-offense penalties
First-offense DUI is typically a misdemeanor with fines, possible jail up to 6 months (longer if BAC ≥ 0.15% or a minor was in the vehicle), probation, DUI school, license revocation, and often ignition interlock.
Walking through Florida facts
Use this walkthrough to see which Florida authority does the work at each step.
A driver in Florida is charged with a first impaired-driving offense and wants to know what the statute actually sets.
- Start with the alcohol limits: 0.08% for adults; 0.04% for commercial drivers; zero-tolerance for drivers under 21; enhanced penalties at 0.15%+
- Read the first-offense range: First-offense DUI is typically a misdemeanor with fines, possible jail up to 6 months (longer if BAC ≥ 0.15% or a minor was in the vehicle), probation, DUI school, license revocation, and often ignition interlock.
- Ask when the charge becomes a felony: A third DUI within 10 years is a third-degree felony; a fourth DUI is a third-degree felony regardless of the lookback in many charging postures; DUI manslaughter is a felony. Lookback: Prior DUI convictions within 10 years (and lifetime counts for some felony enhancements) escalate penalties.
- Interlock: Ignition interlock is required for many DUI convictions, especially high-BAC, repeat, and refusal-related cases, as a condition of hardship or reinstatement.
Florida DUI under § 316.193 triggers criminal prosecution and DHSMV administrative suspension. Drivers must act quickly on formal review hearings. Defense focuses on the stop, FSTs, and breath/blood foundations.
When a Florida DUI becomes a felony
A third DUI within 10 years is a third-degree felony; a fourth DUI is a third-degree felony regardless of the lookback in many charging postures; DUI manslaughter is a felony.
Ignition interlock and license consequences
Ignition interlock is required for many DUI convictions, especially high-BAC, repeat, and refusal-related cases, as a condition of hardship or reinstatement.
How a typical Florida DUI case unfolds
Florida DUI under § 316.193 triggers criminal prosecution and DHSMV administrative suspension. Drivers must act quickly on formal review hearings. Defense focuses on the stop, FSTs, and breath/blood foundations.
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Case law: DUI penalties in Florida
In Re STANDARD JURY INSTRUCTIONS IN CRIMINAL CASES—REPORT NO. 2008-08
…t or Custodian; 15.4— Robbery by Sudden Snatching; 28.1(a)— Driving Under the Influence Causing Property Damage or Injury; 28.5(a) — Racing on a Highway; 28.14 — Boating Under the Influence; 28.15 — Boating Under the Influence Causing Property Damage or Injury; 28.16 — Felony Boating Under the Influence; and 28.17 — Boating Under the Influence Causing Serious Bodily Injury. In…
On DUI penalties, In Re STANDARD JURY INSTRUCTIONS IN CRIMINAL CASES—REPORT NO. 2008-08 speaks to the Florida dispute in this passage: "Custodian; 15.4— Robbery by Sudden Snatching; 28.1(a)— Driving Under the Influence Causing Property Damage or Injury; 28.5(a) — Racing on a Highway; 28.14 — Boating Under the Influence; 28.15 — Boating Under the Influence Causing Property Damage or Injury; 28." The surrounding opinion shows how the court applied that language to the record.
Freeman v. State
Freeman v. State, 611 So. 2d 1260 (1992)
…med the denial of the petitioners' motions to dismiss their driving under the influence convictions on double jeopardy grounds. We deny the petition. Each of the petitioners was stopped by law enforcement officers for driving under the influence of alcohol, each submitted to a breathalyzer test, and the blood alcohol of each was at a level exceeding .10%. The petitioners were c…
Practitioners open Freeman v. State when Florida DUI penalties turns on the distinction in this sentence: "We deny the petition. Each of the petitioners was stopped by law enforcement officers for driving under the influence of alcohol, each submitted to a breathalyzer test, and the blood alcohol of each was at a level exceeding .10%." Do not lift it out of the facts the court was deciding.
State v. Kliphouse
State v. Kliphouse, 771 So. 2d 16 (2000)
….09 percent. Appellee was later charged by information with driving under the influence, in violation of Florida Statutes section 316.193(1) (1997). Before trial, appellee filed a motion to suppress the blood alcohol results. He contended that the police lacked reasonable cause to have blood involuntarily withdrawn from him. At the hearing on the motion, the parties stipulated…
Florida opinions such as State v. Kliphouse are cited where DUI penalties is disputed. The court stated: "Appellee was later charged by information with driving under the influence, in violation of Florida Statutes section 316.193(1) (1997). Before trial, appellee filed a motion to suppress the blood alcohol results." That is the language to brief; the rest of the decision supplies the procedural posture.
Tyner v. State
Tyner v. State, 805 So. 2d 862 (2001)
…dge. Stephen Tyner challenges his judgment and sentence for driving under the influence of alcohol/manslaughter (DUI manslaughter) and DUI causing property damage in violation of section 316.193, Florida Statutes (1995). Under the particular circumstances of this case, we affirm. But see Dodge v. State, 26 Fla. L. Weekly D1550 (Fla. 4th DCA June 20, 2001). The primary issue pre…
Practitioners open Tyner v. State when Florida DUI penalties turns on the distinction in this sentence: "Stephen Tyner challenges his judgment and sentence for driving under the influence of alcohol/manslaughter (DUI manslaughter) and DUI causing property damage in violation of section 316.193, Florida Statutes (1995). Under the particular circumstances of this case, we affirm." Do not lift it out of the facts the court was deciding.
State v. Miller
State v. Miller, 555 So. 2d 391 (1989)
…pounded by the county court. The defendant was charged with driving under the influence of alcohol and other driving related offenses. One hour and 20 minutes after he was stopped, he was given a chemical breath test to measure the alcohol content in his blood. The reading was 0.14 per cent. In a deposition, the state's toxicologist stated that he could not testify within a rea…
State v. Miller is worth reading on Florida DUI penalties because the court put the point in its own words: "The defendant was charged with driving under the influence of alcohol and other driving related offenses. One hour and 20 minutes after he was stopped, he was given a chemical breath test to measure the alcohol content in his blood. The reading was 0.14 per cent." Use that passage as the starting point, then read the facts that precede it.
State v. Perez
State v. Perez, 531 So. 2d 961 (1988)
…-alcohol content of 0.161%. Perez was accordingly cited for driving under the influence in violation of section 316.193(1), Florida Statutes (1985). Perez moved to suppress the blood-test evidence at trial, claiming the sample was drawn illegally. The trial court stated that it believed the sample had been drawn lawfully pursuant to section 316.1933(1), which provides: Notwiths…
State v. Perez is worth reading on Florida DUI penalties because the court put the point in its own words: "Perez was accordingly cited for driving under the influence in violation of section 316.193(1), Florida Statutes (1985). Perez moved to suppress the blood-test evidence at trial, claiming the sample was drawn illegally." Use that passage as the starting point, then read the facts that precede it.
Brian CERRONI v. STATE of Florida
Brian CERRONI v. STATE of Florida, 2002 Fla. App. LEXIS 8400 (2002)
…PSON, C.J. Brian F. Cerroni appeals both his conviction for driving under the influence resulting in serious bodily injury to another and the trial court’s decision to approve a state subpoena for Cerroni’s medical records. He contends that the trial court erred in allowing the state to subpoena his medical records, a ruling which was dis-positive of the case and led to Cerroni…
Florida opinions such as Brian CERRONI v. STATE of Florida are cited where DUI penalties is disputed. The court stated: "PSON, C.J. Brian F. Cerroni appeals both his conviction for driving under the influence resulting in serious bodily injury to another and the trial court’s decision to approve a state subpoena for Cerroni’s medical records." That is the language to brief; the rest of the decision supplies the procedural posture.
Collins v. State
Collins v. State, 578 So. 2d 30 (1991)
…it found appellant guilty as charged, of manslaughter while driving under the influence of an alcoholic beverage. On Count IV, the jury found appellant guilty not of causing serious bodily injury while driving with an unlawful blood alcohol level, but rather guilty of the lesser included offense of driving with an unlawful blood alcohol level. On Count V, the jury found appella…
Practitioners open Collins v. State when Florida DUI penalties turns on the distinction in this sentence: "On Count IV, the jury found appellant guilty not of causing serious bodily injury while driving with an unlawful blood alcohol level, but rather guilty of the lesser included offense of driving with an unlawful blood alcohol level." Do not lift it out of the facts the court was deciding.
Key takeaways
- BAC limits: 0.08% for adults; 0.04% for commercial drivers; zero-tolerance for drivers under 21; enhanced penalties at 0.15%+
- Lookback period: Prior DUI convictions within 10 years (and lifetime counts for some felony enhancements) escalate penalties.
- First-offense range: First-offense DUI is typically a misdemeanor with fines, possible jail up to 6 months (longer if BAC ≥ 0.
- Felony threshold: A third DUI within 10 years is a third-degree felony; a fourth DUI is a third-degree felony regardless of the lookback in many charging postures; DUI manslaughter is a felony.
- Ignition interlock: Ignition interlock is required for many DUI convictions, especially high-BAC, repeat, and refusal-related cases, as a condition of hardship or reinstatement.
- Primary authority: Fla. Stat. § 316.193.
Blood alcohol limits in Florida
0.08% for adults; 0.04% for commercial drivers; zero-tolerance for drivers under 21; enhanced penalties at 0.15%+
Lookback window for prior offenses
Prior DUI convictions within 10 years (and lifetime counts for some felony enhancements) escalate penalties.
Frequently asked questions
What is the legal BAC limit in Florida?
0.08% for adults; 0.04% for commercial drivers; zero-tolerance for drivers under 21; enhanced penalties at 0.15%+
Is a first DUI a felony in Florida?
A third DUI within 10 years is a third-degree felony; a fourth DUI is a third-degree felony regardless of the lookback in many charging postures; DUI manslaughter is a felony.
Will I need an ignition interlock device?
Ignition interlock is required for many DUI convictions, especially high-BAC, repeat, and refusal-related cases, as a condition of hardship or reinstatement.
This guide covers Florida impaired-driving law as of 2026. Sentencing grids, administrative DMV rules, and local diversion programs change — verify the live statute and speak with counsel about your charging document.