DUI Refusal and Ignition Interlock in Florida: What Actually Became Law and What’s Still Pending
DUI refusal ignition interlock proposals in the Florida Legislature raised genuine alarm among defense attorneys when Senate Bill 232 and Senate Bill 260 first began moving through committee, and understanding exactly where these proposals actually stand today matters more than most people realize. Part of what these bills proposed has already become law through a completely different piece of legislation, while another piece remains a separate, still-developing proposal.
Facing DUI Charges Involving a Breathalyzer Refusal in Florida?
The law in this area has changed significantly and continues to develop. Call John Guidry at (407) 423-1117 to understand exactly what applies to your specific situation.
What Senate Bill 232 Originally Proposed
Senate Bill 232 proposed making a first-time refusal to submit to a breathalyzer, blood, or urine test a second-degree misdemeanor. Before this proposal, only a second or subsequent refusal carried potential criminal charges in Florida. A first refusal historically resulted only in an administrative license suspension through the Department of Highway Safety and Motor Vehicles, without any separate criminal charge attached.
The core concern with this proposal centered on timing and the presumption of innocence. A DUI arrest happens based entirely on an officer’s opinion that someone appears impaired, formed before any court has weighed in on guilt or innocence. Criminalizing a refusal to provide additional evidence at that exact moment, before any judicial determination of guilt, struck many defense attorneys as fundamentally at odds with the presumption of innocence that’s supposed to govern the criminal process.
What Actually Happened to This Proposal
Here’s the important update. The core provision Senate Bill 232 proposed, criminalizing a first-time refusal, has already become Florida law, though it arrived through a different legislative vehicle than SB 232 itself. House Bill 687, known as Trenton’s Law, passed and took effect October 1, 2025, amending Florida Statute § 316.1939 to make a first-time refusal to submit to a breath, blood, or urine test a second-degree misdemeanor, punishable by up to 60 days in jail and a $500 fine. A second or subsequent refusal now carries first-degree misdemeanor penalties, up to one year in jail and a $1,000 fine, along with an 18-month license suspension.
This means the specific concern about criminalizing a first refusal, while it began as a standalone proposal that generated real pushback from the defense bar, has already been enacted into Florida law through Trenton’s Law. Anyone arrested for DUI in Florida today faces exactly this consequence for refusing testing, regardless of whether it’s a first offense.
What Senate Bill 260 Proposed and Its Current Status
Senate Bill 260 proposed something distinct from the refusal criminalization itself: requiring a driver who refuses a breathalyzer test to install an ignition interlock device in their vehicle for a year, at a cost often exceeding $1,000, even before any conviction. This raised a genuinely different constitutional concern than SB 232’s criminalization proposal. Ignition interlock devices have traditionally served as a post-conviction consequence, imposed by a judge after an actual finding of guilt. SB 260 proposed imposing that same consequence based purely on a refusal at the roadside, before any court proceeding, any hired attorney, or any judicial determination whatsoever.
This specific pre-conviction ignition interlock requirement represents a more novel and more aggressive expansion of pre-trial consequences than what ultimately passed through Trenton’s Law. As of the most recent legislative sessions, this particular provision has continued moving through committee stages without the same clear enactment that SB 232’s core concept received through Trenton’s Law.
Why the Distinction Between These Two Proposals Matters
Understanding this distinction matters because DUI is fundamentally a crime of opinion at the moment of arrest. An officer’s belief that someone is impaired is not the same as a court’s finding of guilt beyond a reasonable doubt. Ignition interlock devices imposed after a conviction represent an actual, adjudicated punishment tied to a proven violation. An ignition interlock device imposed the moment someone refuses testing, before any court proceeding occurs, represents something categorically different: a real, expensive, and inconvenient consequence attached purely to an officer’s roadside opinion.
What This Means for Anyone Facing DUI Charges Today
Anyone arrested for DUI in Florida now faces real criminal exposure for refusing testing, thanks to Trenton’s Law’s amendment of Florida Statute § 316.1939. Whether additional pre-conviction consequences, like a mandatory ignition interlock device tied specifically to a refusal rather than a conviction, eventually become law remains an open legislative question worth watching closely. Given how quickly this area of Florida law has shifted over the past year, anyone facing a DUI charge involving a refusal should get current, specific guidance rather than relying on older assumptions about how refusals get treated.
If You Want More Related Content
Check out our more videos and breakdown articles covering major updates in Florida defense law. You can also use the links below to stay informed. Learn how to protect your constitutional rights when dealing with law enforcement.
Watch: https://youtu.be/8W2e0Xycdt0
Read: https://www.jgcrimlaw.com/practice-areas/dui/
John’s Takeaways
- Senate Bill 232’s core proposal, criminalizing a first-time breathalyzer refusal, has already become Florida law through Trenton’s Law (House Bill 687), effective October 1, 2025, amending Florida Statute § 316.1939.
- A first-time refusal is now a second-degree misdemeanor, and a second or subsequent refusal is a first-degree misdemeanor, in addition to the existing administrative license suspension.
- Senate Bill 260’s proposal to require a pre-conviction ignition interlock device for anyone who refuses testing represents a separate, more aggressive expansion of pre-trial consequences that remains a distinct legislative question.
- DUI is fundamentally a crime of opinion at the roadside, based on an officer’s belief rather than a judicial finding, which makes pre-conviction consequences like mandatory ignition interlock installation constitutionally significant.
- This area of Florida law has changed rapidly over the past year. Anyone facing DUI charges involving a refusal should get current, case-specific legal guidance rather than relying on outdated assumptions.
Facing DUI Charges Involving a Refusal in Central Florida?
I’ve been defending DUI cases across Central Florida since 1993, and this area of law has genuinely shifted in significant ways over the past year alone. I represent clients across Orange, Seminole, Osceola, Lake, Brevard, and Volusia County.
Give my office a call. Let’s talk through exactly what you’re facing under the current state of the law.
John Guidry — (407) 423-1117
About John Guidry II

John Guidry II is a seasoned criminal defense attorney and founder of the Law Firm of John P. Guidry II, P.A., located in downtown Orlando next to the Orange County Courthouse, where he has practiced for over 30 years. With more than three decades of experience defending clients throughout Central Florida since 1993, Guidry has successfully defended thousands of cases in Orange, Seminole, Osceola, Brevard, Lake, and Volusia counties. He has built a reputation for his strategic approach to criminal defense, focusing on pretrial motions and case dismissals rather than jury trials.
John Guidry earned both his Juris Doctorate and Master of Business Administration from St. Louis University in 1993. He is a member of the Florida Bar and the Florida Association of Criminal Defense Lawyers. His practice encompasses the full spectrum of Florida state criminal charges, with a particular emphasis on achieving favorable outcomes through thorough pretrial preparation and motion practice.
Beyond the courtroom, Guidry is a prolific legal educator who has authored over 400 articles on criminal defense topics. He shares his legal expertise through his popular YouTube channel, Instagram, and TikTok accounts, where he has built a substantial following of people eager to learn about the law. His educational content breaks down complex legal concepts into accessible information for the general public.
When not practicing law, Guidry enjoys tennis and pickleball, and loves to travel. Drawing from his background as a former recording studio owner and music video producer in the Orlando area, he brings a creative perspective to his legal practice and continues to apply his passion for video production to his educational content.