Rules of the road.

Traffic on your right, or traffic already at the junction.

Stop, if it is safe to do so.

Stop. You must not pass the stop line while the light is red.

Proceed, if it is safe to do so. Always check for pedestrians and vehicles still clearing the junction before moving.

Proceed if the crossing is clear, but pedestrians still have the right of way.

Stop — a train is approaching. Do not proceed until the lights go out and the barriers open.

Red. The sequence when stopping is: Green → Amber → Red.

At the stop sign itself.

Each side of the island is treated as a separate crossing.

The extreme right lane.

You must complete the crossing in one movement — do not stop on the central reservation if it is too narrow to hold your vehicle safely.

You may overtake on the left when: (1) the vehicle ahead is turning right; (2) you are turning left immediately after overtaking; (3) you are in slow-moving lanes of traffic and the lane on the left is moving faster.

Never overtake at a bend, the brow of a hill, a humpback bridge, a continuous white line, a pedestrian crossing, or anywhere your view of the road ahead might be obstructed.

You must not increase your speed. Allow the overtaking vehicle to pass safely.

To overtake, and when planning to turn right a short distance ahead.

You must not: (1) cross the line; (2) park opposite it; (3) perform a U-turn.

Overtaking is allowed on the broken-line side only.

A box junction is an area marked with criss-cross yellow lines. When going straight ahead you must not enter unless your exit is clear. You may wait inside the box if you are turning right and are only waiting for a gap in oncoming traffic — but do not enter if doing so would block other traffic that has the right of way.

An area of road that must be kept clear for moving traffic during the times shown on the information plate. You may not stop or park during those times. Other vehicles may only stop if they are held in a queue of moving traffic.

Within 45 centimetres of the kerb, with your vehicle parked parallel to it.

5 metres.

15 metres before the crossing, and 5 metres after it.

Parking is only permitted at certain times. An information plate beneath the sign shows when parking is allowed.

No parking at any time.

No stopping, parking or overtaking on the approach to a pedestrian crossing. They are marked on the road on both sides of the crossing.

It marks the edge of the road or the hard shoulder.

You must not park: at the brow of a hill; on a humpback bridge; near a bend; within 5 metres of a junction; at a bus stop; at an entrance or exit; opposite another vehicle on a narrow road; at a taxi rank; opposite a continuous white line; in a bus lane; on the footpath; at a fire station, Garda station, ambulance station or hospital entrance.

There will be a "No Entry" sign, a "No Entry" road marking, and a continuous white line with a broken one behind it (indicating traffic flows away from you).

100 km/h — this applies on national primary and secondary roads outside built-up areas unless a lower limit is signed.

120 km/h.

At least 2 seconds in dry conditions, and at least 4 seconds in wet conditions. Pick a fixed point — the vehicle ahead should pass it 2 full seconds before you do.

Use dipped headlights: when meeting oncoming traffic; when following behind another vehicle; in a well-lit built-up area; where there is dense fog, falling snow or heavy rain; at dusk and dawn; when stopped in traffic at night; and generally whenever conditions require it to see or be seen clearly.

By the flashing yellow beacons mounted on posts at the crossing.

1.6 mm across the main tread area. (1 mm for motorcycles and vintage vehicles.) It is strongly recommended to consider changing tyres when tread reaches 3 mm.

Check that the handbrake is applied and that the gearbox is in neutral (or Park for automatics).

Only use a horn to warn others of oncoming danger or to make your presence known for safety. Do not use a horn in a built-up area between 11:30 pm and 7:00 am unless there is a genuine traffic emergency.

Stop immediately. Check for injuries — call emergency services (112 or 999) if anyone is hurt. Do not move injured people unless they are in immediate danger. Exchange names, addresses, vehicle registration and insurance details with the other driver. If no Garda is present and someone is injured, report the accident to the Gardaí as soon as possible and at the latest within 24 hours.

Temporarily, to allow another vehicle to pass, provided the hard shoulder is clear and it is safe to do so.

No more than 4.5 metres.

Attach a warning device — such as a white flag of at least 30 centimetres square (30 cm × 30 cm) — to draw attention to the tow bar or rope.

On a motorway you can only exit to the left — there are no right turns, no roundabouts, no traffic lights, and no at-grade junctions. Learner drivers, cyclists and pedestrians are not permitted on motorways.

A bus lane running in the opposite direction to the general traffic flow. It must not be used by other vehicles.

A bus lane running in the same direction as general traffic. Other vehicles may use it outside the hours shown on the information plate.

In a one-way street, where there is a continuous white line, or where a sign prohibits it.

Driving too close to the vehicle in front — not maintaining the 2-second rule. It is dangerous and illegal.

Alcohol, drugs (including some prescription medicines), fatigue, road rage, and other forms of aggression or distraction.

A dangerous hazard ahead — such as an accident scene or a broken-down vehicle.

Coasting is when the vehicle is not driven by the engine — for example, holding the clutch pedal down when not changing gear. It is dangerous because it reduces the driver's control of the vehicle, particularly on descents and during braking.

You must not cross within the white zig-zag lines, or within 15 metres of the crossing where no zig-zag lines are marked.

The driver is responsible for ensuring passengers aged 16 and under are wearing their seatbelts. Passengers aged 17 and over are responsible for wearing their own seatbelt.