The short answer
Florida law exempts a hired, chauffeur-driven vehicle from the child restraint requirement that applies to a private car. The exemption is about the vehicle and its operator. The same subsection of the statute puts the obligation to comply on the parent or guardian, so the law moves the duty rather than removing it.
That exemption names taxis, limousines, sedans, vans, and "other passenger vehicles" hired for compensation. It does not name Uber or Lyft, and no court has settled whether a rideshare ride counts as chauffeur-driven. Treat that specific question as open, not answered.
Legal and safe are different questions. A seat still lowers injury risk for a child under five. Most parents bring or arrange one regardless of what the exemption allows.
What Florida law requires in a private car
Under Florida Statute 316.613, anyone driving a private vehicle with a child age five or younger must use a crash-tested, federally approved child restraint. A child through age three needs a separate carrier or the vehicle's built-in integrated seat. A child age four or five can use a separate carrier, an integrated seat, or a booster.
This is the baseline rule for a parent or grandparent driving their own car. It is not the rule that applies once you hire a driver.
The exemption for hired, chauffeur-driven vehicles
Subsection 6 of the same statute states an exception, and its exact wording matters. It reads: "The child restraint requirements imposed by this section do not apply to a chauffeur-driven taxi, limousine, sedan, van, bus, motor coach, or other passenger vehicle if the operator and the motor vehicle are hired and used for the transportation of persons for compensation."
The same subsection then assigns the duty. It reads: "It is the obligation and responsibility of the parent, guardian, or other person responsible for a child's welfare as defined in s. 39.01 to comply with the requirements of this section." That is obligation language, not a choice the statute hands to the parent. The law does not require the hired vehicle to carry a seat, and it does not stop a parent from bringing or requesting one. This is a summary of the statute, not legal advice.
Taxis and chauffeured cars: named and covered
A metered taxi is named directly in the statute, so it is squarely covered. A private chauffeured sedan or SUV fits the same language. The vehicle is hired, the driver is a chauffeur, and the transportation is for compensation. That is how a service like Miami Black SUV Executive Service operates for an airport transfer.
Rideshare: the real gray area
Uber and Lyft are not on the statute's list of taxi, limousine, sedan, van, bus, or motor coach. The exemption turns on the phrase "chauffeur-driven." It's unclear whether an app-dispatched driver in a personal car counts as chauffeur-driven the way a licensed livery driver does. No Florida appellate ruling or state agency guidance has settled this question. If you're planning a rideshare trip with a young child, do not assume the exemption covers it. Bring a seat.
Legal versus safe
Even where the exemption clearly applies, it only removes a legal requirement. It says nothing about crash physics. A child under five is still safer in a properly installed seat than buckled into an adult belt alone. The practical advice stays the same even where the law does not force the issue.
Bringing your own seat on the flight
If you already own a seat that fits your child, flying with it is usually the simplest option. Delta's published baggage policy does not charge for a stroller or an FAA-approved car or booster seat, and does not count either against your baggage allowance. Delta's own wording is that you can check them before you go through security, or at the gate. Southwest's published policy lets each ticketed passenger check one stroller and one car seat free, at the ticket counter, at the gate, or at the curb where curbside check-in is offered. American Airlines and United publish their own car-seat and stroller policies. Airline policies change, so check your airline's own baggage page before you fly.
Check the seat at the counter or at the gate before you board, whichever line is shorter. On Delta and Southwest it travels free either way, so cost isn't a reason to leave it home.
Renting a seat once you land
If you'd rather not carry a seat through the airport, local rental and delivery services in Miami can help. They drop off a seat and pick it up when you leave.
Uber also runs a dedicated car-seat product, Uber Car Seat, in Miami, according to Uber's own product page. It's also available in Orlando, Los Angeles, San Francisco, Washington, D.C., Atlanta, and New York City. Lyft's version runs only in New York City, per Lyft's help center.
Asking your car service to install one
A chauffeured service can install a seat before pickup. That skips the airport rental counter and the baggage claim wait entirely. Miami Black SUV Executive Service includes up to two child seats, infant, toddler, or booster, free when you request them at booking. A booking that needs more than two seats requires an advance quote.
You can also choose meet-and-greet service. The chauffeur waits inside at baggage claim with a name sign and helps with your bags, instead of meeting you at the curb.
Who is responsible if there is no seat
Outside the exemption, Florida Statute 316.613(5) makes a violation a moving violation and assesses three points against the driver's license. The same subsection lets a violator elect, with the court's approval, to participate in a child restraint safety program approved by the chief judge of the circuit where the violation occurred. The statute waives the points on completion, and the court may waive the fine at its discretion.
Inside a hired, chauffeur-driven vehicle, that restraint requirement doesn't apply in the first place. There's no restraint violation to charge the driver with. The statute puts the obligation to comply on the parent or guardian instead. That's why it's worth arranging a seat yourself rather than assuming the driver will have one.
Planning a family trip in Miami-Dade or Broward
One vehicle, one chauffeur, the same service every time. That holds whether you're headed from the airport to a hotel in South Beach or across town to a meeting in Brickell.
Miami Black SUV Executive Service runs a single Chevrolet Suburban. It seats seven and takes up to six large bags. If your group is close to both limits, confirm your headcount and bag count when you book.
That one vehicle covers Miami-Dade and Broward. Ask for the child seats when you book the ride, not when you land.