Most drivers have, at some point, let a tire touch or cross a lane line for a moment. Florida law has a statute about staying in your lane, but courts have not always agreed on what it takes to actually break that law.
This matters because a traffic stop is often the starting point for everything that follows on the roadside. If a stop is valid, evidence gathered afterward can be used in court. If it is not, that evidence may be challenged.
One question that has divided Florida’s appellate courts is whether drifting out of a lane is only a violation when it endangers someone, or whether leaving the lane by more than is practicable is enough on its own. That disagreement is the focus of Perez v. State, a decision from Florida’s Sixth District Court of Appeal.
Key Takeaway
The Sixth District held that a driver can violate Florida’s lane-maintenance statute by leaving the lane by more than is practicable, even if no one else was endangered.
The question is more specific:
- Does the lane-maintenance statute require a safety risk before a stop is valid?
- Or is leaving the lane by more than practicable enough on its own?
What happened in this case?
The driver was charged with trafficking in methamphetamine after a traffic stop. He asked the trial court to suppress the evidence, arguing the stop was not justified.
A detective testified that he stopped the vehicle for two reasons: exceeding the posted speed limit and failing to stay within a single lane. According to the detective, the driver crossed the lane line and moved entirely out of the lane on two separate occasions, toward the median. The trial court accepted that testimony and denied the motion to suppress.
The driver later entered a plea but reserved his right to appeal the denial of the motion.
What does the lane-maintenance statute actually say?
Section 316.089(1), Florida Statutes, applies when a roadway is divided into two or more clearly marked lanes. It says a vehicle must be driven as nearly as practicable entirely within a single lane, and must not be moved from that lane until the driver has first made sure the movement can be made safely.
The phrase “as nearly as practicable” is what makes the statute tricky. It suggests some allowance for real-world driving, but it does not spell out exactly when a lane deviation crosses the line into a violation.
Why were Florida courts split?
The court explained that two other appellate districts had read the statute differently.
In one line of cases from the Second District, the court had declined to find a violation where a driver’s failure to stay in a single lane did not endanger the driver or anyone else. Under that view, crossing the line without creating a reasonable safety concern was not enough to justify a stop.
The Fifth District took a different path. It held that, regardless of whether anyone was endangered, a stop can be valid when a driver deviates from the lane by more than what was practicable. Under that reading, the failure to stay in the lane is itself the violation.
The core disagreement
One approach asks whether the lane deviation created a safety risk. The other asks whether the driver stayed in the lane as nearly as practicable, without requiring proof that anyone was endangered.
What did the Sixth District decide?
The Sixth District sided with the Fifth District’s approach. It concluded that the detective’s testimony was sufficient to show the driver did not stay as nearly as practicable within a single lane, so the stop was validly based on a violation of section 316.089(1).
The court also noted that the trial court had found a separate basis for the stop — that the driver exceeded the speed limit — and concluded that finding was supported by the evidence as well.
Because its interpretation conflicts with the Second District’s decision, the court certified a direct conflict, which is a formal way of flagging the disagreement for potential review by Florida’s highest court.
Why does this matter to drivers?
This decision shows that, within the Sixth District, a lane deviation may support a traffic stop under section 316.089(1) even when no other vehicles were affected. That is a meaningful difference from how the statute has been read elsewhere in the state.
Because the court certified a conflict, the issue is not necessarily settled statewide. How the statute is applied can depend on which appellate district a case is in and whether higher review occurs. Anyone with questions about a specific situation should consult a qualified attorney rather than rely on a general summary.
Disclaimer: This post is for general information only, is not legal advice, does not create an attorney-client relationship, and does not predict or guarantee any result. The hiring of a lawyer is an important decision that should not be based solely upon advertisements. Before deciding, ask for free written information about the lawyer’s qualifications and experience.