Costa Rica Car Seat Law: Driving With Kids Without the Drama

Yes, Costa Rica has a real car seat law, and police do enforce it. Under Traffic Law No. 9078, children under 12 who are shorter than 1.45 m (about 4 ft 9 in) must ride in the back seat, and a separate regulation requires an appropriate child restraint for their age, weight and height. If your kid would need a car seat or booster at home in the US or Canada, plan on the same here.

The law is the easy part. The harder part is getting a decent seat into a rental SUV and planning drive days that don’t end with a carsick toddler on a mountain road at dusk. This guide covers both.

What does Costa Rica’s car seat law actually say?

The rules come from Costa Rica’s Traffic Law No. 9078 (Ley de Tránsito por Vías Públicas Terrestres y Seguridad Vial), in force since 2012. Two parts matter for families:

• Article 94: Children under 12 who are shorter than 1.45 m must ride in the rear seat.
• A separate child restraint regulation sets the seat groups (infant, child seat, booster) by age, weight and height, and explains how they must be installed.

Most English-language sources read the rule as “under 12 and under 1.45 m.” That’s how the article is usually quoted, but we’d rather you not bet a traffic stop on legal nuance. Our practical reading:

• Under 1.45 m (4’9″): back seat, in a child seat or booster. No exceptions worth arguing about.
• Under 12 but already taller than 1.45 m: the back seat is still the safe and sensible choice. A regular seat belt is fine if it fits correctly across the shoulder and hips.
• 12 and over: front seat is allowed, with a seat belt like everyone else.

If you want the exact wording, the full text of Law 9078 and the child restraint regulation is on SCIJ, Costa Rica’s official legal database (pgrweb.go.cr). COSEVI, the national road safety council, also publishes guidance at csv.go.cr. Both are in Spanish.

What’s the fine for not using a car seat in Costa Rica?

It’s one of the more expensive tickets in the traffic law. Article 144 sets the penalty for drivers carrying a child who should be in a seat but isn’t. The original 2012 amount was ₡189,000. Costa Rica adjusts traffic fines every year, so the current figure is higher. As of 2026, check the latest yearly update from COSEVI or MOPT (the Ministry of Public Works and Transport), or search local news outlets like La Nación or CRHoy for “multas de tránsito 2026.”

Either way, you’re looking at a fine in the hundreds of dollars, not a $40 parking ticket. A few things tourists should know:

• The driver gets the ticket, not the passenger and not the rental company.
• Unpaid fines can follow the car. Rental contracts usually let the agency charge you for tickets linked to the vehicle, sometimes with an admin fee on top.
• Checkpoints are common. Tránsito (traffic police) regularly set up stops on Route 1 near the airports, on Route 27 toward the Pacific, and at the entrances to beach towns. A car full of loose kids is easy to spot.
• License points: Costa Rica uses a points system for local licenses. How it applies to foreign licenses isn’t clear, so don’t count on it not mattering.

For the wider rules on foreign licenses, seat belts and checkpoints, see our complete guide to driving in Costa Rica.

Which car seat does my child need?

The regulation groups seats by age, weight and height, much like the European system. We haven’t confirmed the exact weight limits for each group, so go by the limits printed on your seat’s label. They’re the same numbers you’d follow at home:

• Babies and young toddlers: rear-facing infant seat or convertible seat, used rear-facing for as long as the seat allows.
• Toddlers and preschoolers: forward-facing seat with a 5-point harness, once they’ve outgrown rear-facing.
• School-age kids: a high-back or backless booster with the car’s lap-and-shoulder belt, until they reach 1.45 m and the adult belt fits properly.

A belt fits properly when the lap belt sits low across the hips (not the stomach), the shoulder belt crosses mid-chest and collarbone (not the neck), and your child can sit with their back against the seat and knees bent at the edge. Most kids get there somewhere between 8 and 12.

Should you rent a car seat or bring your own?

This is the big decision. Here’s the honest comparison:

On a 10-day trip with two kids, rental seats can easily add US$100–200 to your bill. Plug your dates and extras into our real cost calculator for Costa Rica car rentals to see what the quote actually adds up to.

If you rent: what to check at the counter

• Reserve the seat when you book the car, and say what type you need (infant, convertible, booster) and your child’s age and weight. Then confirm by email a few days before you fly.
• Check the expiry date. Most seats have a manufacture date and an expiry date stamped on a sticker or molded into the plastic. If it’s expired or has no label, ask for another one.
• Look it over. Check for cracks in the shell, frayed straps, a harness buckle that clicks properly, all padding present and no crash history. If it looks like it’s been through three rainy seasons in a parking lot, it probably has.
• Expect to install it yourself. Agents generally won’t install seats for liability reasons. Bring the manual on your phone (search the brand and model) and give yourself 15 minutes in the lot.
• Check that it’s on the contract and that the daily rate matches your quote. Seats are a common place for “surprise” charges.

Airport pickups have their own traps, from shuttle chaos to insurance upsells. Read our SJO airport survival guide or the Liberia (LIR) car rental guide before you land.

If you bring your own: making it work

• Gate-check it or bring it onboard. An FAA-approved seat used on the plane is the safest way to get it there in one piece. Checked seats get thrown around, so a padded bag helps.
• Know how it installs with a seat belt. Most newer rental SUVs have ISOFIX/LATCH-style lower anchors, but don’t assume it. Some older or budget models, and the back seats of some pickups, may not have them or may have hard-to-reach anchors. A seat-belt install works everywhere if you know how to do it.
• Think about a travel booster for kids 4 and up. Compact, folding boosters fit in a backpack and also solve the taxi problem (see below).
• Legal note: We haven’t found official guidance confirming that US or Canadian-certified seats meet Costa Rica’s regulation. In practice, a properly used North American seat clearly does the job a police officer is looking for. Still, keep the certification label visible.

Do taxis, Ubers and shuttles need car seats?

Many sources say taxis are exempt. We haven’t been able to confirm that in the official text, so don’t plan your trip around it. What we can tell you from the road:

• Red taxis almost never carry child seats.
• Uber and other ride apps work in the Central Valley and some beach towns. Drivers have no seats and may refuse a family with a baby and no seat.
• Private shuttles (airport and tour transfers) can often provide seats if you ask when you book. Confirm in writing.

If you’ll take a few taxis on a beach day, a folding travel booster or a lightweight harness seat is worth packing for safety, whatever the legal fine print says.

How long should a driving day be with kids in Costa Rica?

Shorter than you think. Google Maps routinely underestimates Costa Rican drive times by 20–40%, and that’s before snack stops, diaper changes and a stop to watch a sloth in a roadside tree. Our rules for families:

• 3–4 hours of driving per day, max. With toddlers, aim for 2–3.
• Leave by 8 am. Roads are emptier, it’s cooler, and the afternoon rain hasn’t started yet.
• Be parked by 5:30 pm. It’s dark by about 6 pm all year. Rural roads have no lights, few lines, and pedestrians, cyclists and cows on the shoulder.
• Stay at least two nights in each place. A one-night stop means a full day of packing and unpacking for every hour of fun.

Realistic family drive times on popular routes

For a full family-friendly plan, our 7-day volcano and beach road trip is built around short drive days. Or build your own with the interactive road trip planner.

Which roads are hardest on carsick kids?

Costa Rica is mostly mountains, and the roads follow every one of them. The worst stretches for queasy stomachs:

• Lake Arenal road (Route 142) and the climb to Monteverde: constant curves for hours. Kids who are fine on highways often struggle here.
• Route 32 through Braulio Carrillo National Park: steep, twisty, often foggy, with heavy truck traffic to the Caribbean port of Limón. Closures happen after heavy rain.
• Route 2 over Cerro de la Muerte (toward the southern zone): high, cold, curvy and often in cloud.
• The Central Valley to La Fortuna via Zarcero or San Ramón: lots of turns in the middle third.

What helps: seat kids where they can see out the front, keep the car cool, skip the big greasy lunch right before the curves, stop every 60–90 minutes, and keep a “just in case” kit within reach (bags, wipes, a change of clothes, a towel). Ask your pediatrician about motion sickness medication before the trip, not on the side of the road in the rain.

Rainy season with kids: what changes in October?

As of early October 2026, you’re in the wettest part of the year on the Pacific side and in the Central Valley. Afternoon storms can be intense, visibility drops, and landslides close mountain roads more often. The Caribbean coast (Puerto Viejo, Cahuita) is usually drier in September and October.

For families, that makes the 8 am start non-negotiable: drive in the dry morning, be at the hotel pool by early afternoon. Our rainy season driving guide covers the details. And never cross a flooded river or road with kids in the car (or without them). If the water is moving and you can’t see the bottom, turn around.

Where to stop: bathrooms, snacks and leg-stretching

• Gas stations on main routes usually have restrooms, though they’re not always spotless. Pack toilet paper and hand sanitizer.
• Sodas (small local diners) are kid-friendly and quick. Rice, beans, chicken and fresh fruit juice keep almost everyone happy.
• Tárcoles crocodile bridge on Route 34 is a classic stop on the way to Jacó or Manuel Antonio. Hold small hands near the railing, and park with nothing visible in the car.
• Zarcero on the way to La Fortuna has a topiary garden in front of the church where kids can run for 20 minutes.

Safety rules that matter more with kids

• Never leave a child in a parked car, not even for “two minutes” at a gas station. Interiors heat up fast in tropical sun.
• Don’t leave car seats looking like luggage. A car full of gear and bags at a beach lot attracts thieves. Read how to park safely at beaches and trailheads.
• Pack water and snacks for 2 extra hours. A landslide or accident can stop traffic on a single road with no detour.
• Download offline maps before you leave the hotel. Cell signal drops in the mountains.
• Pick a car with real ground clearance if you’re heading to unpaved areas. A small SUV also makes lifting kids in and out of seats much easier on your back.

Bottom line

Costa Rica’s car seat law is simple: kids under 12 and under 1.45 m ride in the back in a seat that fits them. The fine is expensive and adjusted every year, so treat the seat as part of the car, not an optional extra. Bring your own seat for babies and toddlers, reserve and inspect rental seats carefully, and plan short morning drives that end well before 6 pm. A slower trip with happy kids beats a packed itinerary with a meltdown on the Arenal lake road every time.