Florida law requires a working third brake light on most vehicles, and the third brake light law in Florida works through a combination of state equipment statutes and a federal manufacturing standard rather than a statute that names the lamp directly. A burned-out center high-mounted stop lamp (the formal name for the third brake light, often abbreviated CHMSL) can bring a traffic citation, and it can also cost you money if you are rear-ended and the other driver’s insurer argues the missing light contributed to the crash.
What the Florida Statutes Say
Two statutes do the work. Section 316.222 requires every motor vehicle, trailer, semitrailer, and pole trailer to carry two or more stop lamps. Vehicles built before January 1, 1972, need only one. The statute treats stop lamps as a category and does not single out the CHMSL.1Florida Senate. Florida Code 316.222 – Stop Lamps and Turn Signals
Section 316.610 is where the third brake light actually gets its teeth. That statute makes it a violation to drive any vehicle that lacks the equipment “required in this chapter” or that is “in such unsafe condition as to endanger any person or property.”2Justia Law. Florida Code 316.610 – Safety of Vehicle; Inspection Because federal law requires vehicles to leave the factory with a working CHMSL, a vehicle without one fails the equipment standards section 316.610 enforces.
Which Vehicles Need a Third Brake Light
The federal rule sits at 49 CFR 571.108, Federal Motor Vehicle Safety Standard No. 108. It requires one red high-mounted stop lamp centered on the vertical centerline of every passenger car and every multipurpose passenger vehicle, truck, or bus under 80 inches wide with a gross vehicle weight rating of 10,000 pounds or less. The lamp must be red and must activate only when the service brakes are applied.3eCFR. 49 CFR 571.108 – Standard No. 108; Lamps, Reflective Devices, and Associated Equipment
The requirement took effect with the 1986 model year for passenger cars and the 1994 model year for light trucks and vans. Vehicles built before those cutoffs were never factory-equipped with a CHMSL and do not have to add one. If you drive a pre-1986 car or a pre-1994 light truck, no third brake light is required.
How the Requirement Is Enforced
Florida does not run a periodic state inspection program for passenger vehicles, so enforcement happens on the road. Under section 316.610, an officer with reasonable cause to believe a vehicle is unsafe or missing required equipment can stop the driver and inspect it.2Justia Law. Florida Code 316.610 – Safety of Vehicle; Inspection
For a defect serious enough to make continued operation “unduly hazardous,” the officer can require immediate repair or order the vehicle off the road. A single burned-out CHMSL usually does not rise to that level. Instead, the officer issues a written notice requiring repair within 48 hours (excluding Sundays), along with a traffic citation for the equipment violation.
Fines and the Fix-It Ticket
A violation of section 316.222 is a noncriminal traffic infraction, punished as a nonmoving violation.1Florida Senate. Florida Code 316.222 – Stop Lamps and Turn Signals The base statutory fine is $30, but with mandatory surcharges, court costs, and other fees, the out-of-pocket total reaches roughly $137.4Florida Department of Highway Safety and Motor Vehicles. Appendix C – Uniform Traffic Citation Penalty Schedule
You can cut that dramatically. Section 316.6105 requires the officer who writes an equipment citation to hand you an affidavit-of-compliance form.5Florida Senate. Florida Code 316.6105 – Violations Involving Operation of Motor Vehicle in Unsafe Condition or Without Required Equipment; Procedure for Disposition Fix the light, take the vehicle to any local police department or sheriff’s office within 30 days for inspection, pay $4 to the inspecting agency, and get the affidavit signed. Present the signed affidavit to the clerk of the court with $10, and your total is $14.6The 2025 Florida Statutes. Florida Code 318.18 – Amount of Penalties
Skip the fix, and the full fine plus any additional penalties runs through the normal court process. The affidavit option does not apply to commercial motor vehicles or government-operated transit buses.5Florida Senate. Florida Code 316.6105 – Violations Involving Operation of Motor Vehicle in Unsafe Condition or Without Required Equipment; Procedure for Disposition
Truck Caps and Camper Shells
A common problem: a truck cap or camper shell that hides the factory CHMSL. Under federal law, a dealer, distributor, or repair business that installs a cap obscuring the original center stop lamp has “made inoperative” a federally required safety device, which is illegal. To comply, the business must equip the cap with a substitute lamp meeting the original’s brightness and placement.7National Highway Traffic Safety Administration. Interpretation 15737.ztv
Vehicle owners are not subject to that federal “make inoperative” rule and can technically install a cap without a built-in CHMSL without violating federal law.7National Highway Traffic Safety Administration. Interpretation 15737.ztv Florida’s section 316.610 still requires proper lamps, though, so an obstructed third brake light can still draw a citation, and it can weaken your position in a rear-end crash claim. A cap with a functioning replacement lamp is the safer setup.
Why It Matters After a Rear-End Crash
The real cost of a bad CHMSL usually shows up when someone hits you from behind. Florida uses modified comparative fault: your damages get reduced by whatever percentage of fault a jury assigns to you, and if you are found more than 50 percent at fault, you recover nothing.8Justia Law. Florida Code 768.81 – Comparative Fault
A burned-out third brake light probably will not make you the majority at-fault party in a rear-end collision, but it gives the other driver’s insurer an argument to shift some blame your way. Adjusters routinely check brake light functionality on rear-end claims. If a crash report or scene photo shows your CHMSL was out, expect the argument that you reduced the warning available to the driver behind you. Even a 10 or 15 percent fault assignment on a serious injury claim translates to real money.
Defenses if You Are Cited
The most practical defense is to fix the light and use the affidavit-of-compliance process to bring the fine down to $14. Beyond that, drivers sometimes argue a sudden, unforeseeable bulb failure during the same trip. Courts may weigh that, and documented recent maintenance or a mechanic’s inspection can support the argument that you were not negligent in keeping the vehicle roadworthy.
If your vehicle predates the federal CHMSL requirement (1986 for passenger cars, 1994 for light trucks), the manufacture date is a complete defense to a missing-third-brake-light citation. Keep the title or registration accessible so you can establish the model year during a traffic stop.