Florida BAC Limits & DUI Consequences
Blood-alcohol legal limits for adults, minors, and commercial drivers; refusal-to-test penalties; first-offense consequences.
- BAC limit: adult
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0.08
Source: Florida Driver License Handbook (rev. 08/2023), Chapter 3: Your Driving Privilege, p. 25 (Driving Under the Influence) Verified Aug 2026
- BAC limit: minor (under 21)
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0.02
Source: Florida Driver License Handbook (rev. 08/2023), Chapter 3: Your Driving Privilege, p. 26 (Zero Tolerance) Verified Aug 2026
- BAC limit: commercial
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0.04
- Implied consent / refusal consequences
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Consent is not something you sign for, it is something you give by driving. Under Florida law, anyone who accepts the privilege of operating a motor vehicle in this state is, by operating it, deemed to have consented to testing on the lawful request of an officer with reasonable cause to believe you were driving under the influence. That reaches a learner's license holder and a visitor licensed in another state, not only Florida license holders. Refuse a breath or urine test and you lose your license for a year, and since October 1, 2025 you also commit a second-degree misdemeanor on that first refusal; a second or subsequent refusal brings an 18-month suspension and a first-degree misdemeanor. The refusal offense is written around breath and urine, but blood is not a free pass: refusing a lawful blood test after you have already lost your license for a previous refusal is also a misdemeanor. Blood testing itself has its own triggers. It applies where a breath or urine test is impractical or impossible, and in DUI cases involving death or serious bodily injury blood may be drawn with or without your consent, including while you are unconscious, by a doctor, nurse or other health professional.
- DUI first-offense consequences
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A first DUI conviction in Florida carries a fine of $500 to $1,000 (raised to $1,000 to $2,000 when the BAL was .15 or higher or a minor was in the vehicle), 50 hours of community service, up to one year of probation, and up to six months of imprisonment (up to nine months with the aggravating factors). The license is revoked for a minimum of 180 days. You must complete 12 hours of DUI School and undergo an evaluation to determine whether treatment for addiction is needed. An ignition interlock device is available at the court's order on a first conviction and is mandatory for at least six continuous months when the BAL was .15 or higher or a minor was in the vehicle. After a DUI conviction Florida also requires higher liability limits ($100,000 bodily injury per person, $300,000 per accident, and $50,000 property damage) for three years, and a DUI stays on your driving record for 75 years. One consequence the handbook leaves out: on a first conviction the court must also order your vehicle impounded or immobilized for 10 days as a condition of probation. It applies to the vehicle you were driving or any one vehicle registered in your name, and the 10 days do not run at the same time as any jail term.
- Ignition interlock required
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Florida does not require an ignition interlock on every DUI. On a first conviction the court may order one, and it becomes mandatory for at least six continuous months when the breath or blood alcohol level was .15 or higher or a minor was in the vehicle. A second conviction carries at least one continuous year, but at least two continuous years if that second offense also involved a level of .15 or higher or a minor in the vehicle. A third carries at least two continuous years. The device goes on every vehicle you own or lease and routinely drive, at your expense, and it will not let the engine start until it reads a clean breath sample.
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