Child car seat rules in Poland are based on height, not age: a child shorter than 150 cm must travel in a child seat or another restraint suited to their height and weight. The exceptions cover the rear seat (from 135 cm, and a third child aged 3 or over), taxis, ambulances and police vehicles, and a medical certificate. Breaking the rules means a 300 zł fine and penalty points for the driver.
Child car seat rules in Poland at a glance
The rules are set out in Articles 39 and 45 of the Polish Road Traffic Act (in Polish). They apply in cars, vans and trucks fitted with seat belts, including rental cars, and to every driver on Polish roads, whatever country their licence is from.
| Situation | What the law says |
|---|---|
| Child under 150 cm | travels in a child seat or other restraint suited to their height and weight and approved under EU rules or UN ECE regulations |
| Child of 135 cm or more | may travel in the rear with just a seat belt if no suitable child seat can be fitted because of their height and weight |
| Third child in the rear | aged 3 or over may use a seat belt when two children sit in child seats in the rear and a third seat does not fit (cars and light vans) |
| Rear-facing seat in the front | only with the passenger airbag switched off |
| No child seat despite being under 150 cm | taxi, ambulance, Police, Border Guard or municipal guard vehicle, or a child with a medical certificate of exemption |
Until what age does a child need a car seat in Poland?
A child needs a car seat until they reach 150 cm. Only height counts, so there is no single age limit. A 10-year-old who is 140 cm tall still needs a car seat or another approved restraint, such as a booster (a high-back booster is safer), while a tall 12-year-old over 150 cm can use the adult seat belt.
One exception softens the rule. If a child is at least 135 cm tall and no suitable seat can be fitted because of their height and weight, they may travel in the rear seat with just a seat belt. It does not cover the front seat.
Car seat or booster: which one, and up to what height?
The law requires a restraint that matches the child's height and weight, and the range is printed on the manufacturer's approval label. Seats approved under ECE R129 (i-Size) are labelled by height in centimetres, while older ECE R44 seats are labelled by weight in kilograms. A backless booster cushion does not protect the head in a side impact, so for younger children choose a seat with a backrest and check the label for the minimum height.
When can a child stop using a car seat?
From 150 cm. At that height the seat belt usually fits properly: across the middle of the shoulder and low on the hips, not across the neck and stomach. If the belt still rubs the neck, keep the high-back booster a little longer.
Can a child sit in the front seat in Poland?
Yes. Polish law sets no minimum age for the front seat. A child under 150 cm may sit in the front passenger seat, but only in a child seat. One condition applies to rear-facing seats: they may be used in the front only when the passenger airbag is switched off, because a deploying airbag strikes the back of the seat at the level of the child's head.
A forward-facing seat may be used in the front with the airbag on if the seat and car manuals allow it. Move the passenger seat as far back as it goes. Even so, the rear seat remains the safer place for a child.
Fines and penalty points
For carrying a child in breach of the rules - without a seat, in a seat that does not match their height, or rear-facing in front of an active airbag - the police can issue a 300 zł fine (schedule of traffic fines, in Polish). The driver also receives penalty points depending on how many children were carried incorrectly (penalty points regulation, in Polish):
- one child - 5 points;
- two children - 10 points;
- more than two children - 15 points.
The driver is responsible, even if the seat belongs to a parent travelling as a passenger.
Fitting a child seat: ISOFIX or seat belt?
A child seat must be fitted as the manufacturer instructs - the Polish law requires this too. ISOFIX means two metal anchor points between the backrest and the seat cushion that the child seat clips onto without the seat belt. It reduces the risk of fitting mistakes, which is why ISOFIX is often the easiest option in an unfamiliar rental car.
How do you fit a car seat without ISOFIX? Most seats can be secured with the car's seat belt. Route the belt exactly through the colour-coded guides on the seat (usually blue for rear-facing and red for forward-facing), pull it tight and check that the seat moves no more than a few centimetres side to side. Always follow the manual for your model.
Renting a car with children in Poland
BLS does not provide child seats, so bring your own - your child then travels in a seat they know and that fits their height. Most cars in our fleet have ISOFIX anchor points. If your seat fits only with ISOFIX, ask when booking whether the chosen model has them.
- Before booking: check the seat label for the height or weight range and the fitting method (ISOFIX, seat belt, support leg).
- Choosing the car: two child seats plus luggage for a longer trip are easier in an estate car for rent in Warsaw. With three children or a bigger family, compare minivans in Warsaw, where three seats fit more easily.
- At pick-up: fit the seat on the spot and check that it does not move. If a child will ride rear-facing in the front, find out how the passenger airbag is switched off in that model.
- Your licence: if you hold a licence from outside Poland, check our guide to driving in Poland with a foreign licence.
- On the road: plan a break every 1.5-2 hours. For short family outings, see our day trips from Warsaw by car.
Questions about a specific car model and fitting your seat? Contact BLS before booking with your dates, number of passengers and type of child seat.
FAQ
Does an 8-year-old need a car seat in Poland?
Yes, if they are shorter than 150 cm. The law does not look at age. The exception: a child of 135 cm or more may ride in the rear with a seat belt when no suitable seat can be fitted.
Do Polish child seat rules apply to tourists?
Yes. The same rules apply to every driver on Polish roads, including visitors and people driving a rental car.
When can a child travel without a car seat in Poland?
When they are at least 150 cm tall, travel by taxi, ambulance or police vehicle, or have a medical certificate of exemption. A child of 135 cm or more may also ride in the rear with a seat belt when no seat fits, as may a third child aged 3 or over when a third seat does not fit.
When can a child use a booster seat in Poland?
The law sets no height or age limit for a booster. It must be approved and suit the child, and the manufacturer's label gives the height or weight range.
How do I know a car seat is too small?
When the child has outgrown the height or weight range on the label, their head is above the headrest, or the harness straps come out of the backrest below shoulder level. Then it is time for the next stage of seat.
Can I rent a child seat from BLS?
No, BLS does not provide child seats. Bring your own - most cars in our fleet have ISOFIX, and you can fit the seat yourself when you collect the car.
Main photo: MIKI Yoshihito, CC BY 2.0, Wikimedia Commons (cropped).