Czech traffic rules that catch out drivers from abroad

The first Czech traffic rule most people from abroad hear is the blunt one: if you have been drinking, do not drive. It is more than good advice. The legal limit is zero. After that comes a list of habits that are normal elsewhere and a problem here, from daytime lights to what to do at a tram stop.

This is a list of the rules that surprise people most often, with the reason behind each. It is not a replacement for the road traffic act or the driving school manual, and the details change, so check the sources at the end for the current text.

1. Zero alcohol

A driver may not have any alcohol in the blood. This differs from the limits of 0.5 or 0.8 per mille in some other European countries, and it affects the morning after as well as the evening. A drink with lunch counts, and so do some medicines that contain alcohol or impair driving. Police can test at the roadside, and refusing a test is treated as an offence in its own right.

2. Headlights on, all day, all year

Dipped headlights or daytime running lights are required on every vehicle at all times, in summer and winter, in sun or rain. Many modern cars do this automatically. An older car or a hire car might not, so check the switch.

3. Priority from the right

At an intersection with no signs and no signals, the vehicle approaching from the right has priority, whatever the size of the roads. In practice, many junctions in Czech residential areas and villages work this way. Look for the yellow diamond sign that marks a priority road, and for the sign with a diagonal bar through it that ends the priority.

The rule catches drivers from countries where the larger road always wins. The safe habit in a Czech neighbourhood is to slow down at every junction and look right first.

4. Trams

Trams are heavy, fixed to the track and hard to stop. In most meetings between a tram and a car, the tram goes first, including when you are turning across the track. Tram stops without a raised platform have their own rule for passing a tram that is letting passengers on and off, and the exact conditions are in the Road Traffic Act, so read them before you drive in a tram-heavy city such as Prague. Our explainer on driving in Prague covers it in more detail.

5. Pedestrians at crossings

Drivers must let pedestrians cross at marked crossings, which means stopping for someone on the crossing and for someone clearly about to step onto it. A pedestrian who hesitates at the kerb is usually waved on. Do not edge forward at a crossing, because failing to give way is a traffic offence that can carry points.

6. Winter tyres

Winter tyres are required in winter conditions between 1 November and 31 March, or wherever a sign says so. If there is snow, ice or frost on the road in that window, a car without winter tyres is a problem. Outside the period, the rule does not apply, but a car on summer tyres in the snow is a hazard in any month.

7. Seat belts, phones and child seats

Seat belts are compulsory for every occupant. Handheld use of a phone while driving is prohibited. Children need a suitable child restraint, with the rules depending on their height and weight. A taxi or a ride from a friend does not suspend these obligations.

8. What your car must carry

A Czech car should carry a high-visibility vest, a warning triangle and a first-aid kit, and the vest must be reachable from the driver's seat. A spare wheel or a repair kit is usual. If you hire a car, check what is in the boot.

9. Speed limits

The default limits are 50 km/h in built-up areas, 90 km/h outside them, 110 km/h on expressways and 130 km/h on motorways, unless a sign shows another number. The start of a village is marked by a white sign with the place name, which also starts the 50 km/h limit. Speed is measured by fixed cameras, mobile units and stretch controls on some sections.

10. Points and bans

Czechia scores traffic offences in a points system. Drivers collect points for violations, and when a driver reaches 12 points, the licence is suspended for a period. Points can drop out after a set time if there are no further offences. Ask the Ministry of Transport how to check your own score online, using the identity tools covered in our piece on using Czech public services online.

11. Motorway rules and the zip

On a congested road, drivers are expected to merge alternately at the point where a lane ends (the zip, or zipper merge). Staying in the left lane without need on a motorway invites a fine, and the left lane is for overtaking. A vignette is required on motorways: see the Czech motorway vignette explained.

12. Residential zones and roundabouts

A residential zone (obytná zóna) is marked by its own sign, and inside it the speed limit is low, pedestrians may use the whole carriageway and drivers must give way to them. Treat it like a shared yard rather than a road. Roundabouts are less uniform than in some countries. Priority for traffic already circling comes from the give-way sign at the entry, so read the sign on approach and do not assume it. Signal when you leave.

13. After an accident

If anyone is hurt, call the emergency number 112 or the police on 158. Where damage is minor and drivers agree, the standard step is the joint accident record, which feeds the insurance claim; see compulsory car insurance. Do not leave the scene before duties are met.

Paperwork you carry

Carry your driving licence, the vehicle registration certificate and proof of insurance when you drive. A foreign licence is valid for a limited time after you become resident, and a resident from a non-EU country must exchange it within a deadline; see exchanging a foreign driving licence.

Frequently asked questions

Is there really no tolerance for alcohol when driving?

The legal limit is zero. Any measurable alcohol can lead to a penalty, so the safe rule is not to drive after drinking.

Do I need winter tyres all winter?

They are required between 1 November and 31 March when the road has winter conditions, or where a sign orders them.

Can the police fine me on the spot?

For many offences they can issue an on-the-spot fine. For others, the case goes to the municipal authority. Ask for a receipt for any payment.

Do I need to carry a high-visibility vest?

Yes, a vest, a warning triangle and a first-aid kit are standard compulsory equipment for cars.

A good test of whether you have understood the list: pick the next unmarked junction you cross and say aloud who has priority. If the answer is not "the car on the right", read item 3 again.

This is a general explainer, not legal or tax advice.