Traffic signsSwitzerland
Traffic rules
Switzerland
76. Runaway truck ramp
A runaway truck ramp, also called an emergency escape lane, is a specially constructed lane designed to stop a vehicle that has lost effective braking, particularly a heavy vehicle descending a steep hill. The ramp may use an uphill gradient, deep gravel or another energy-absorbing surface to slow and stop the vehicle.
A driver who has lost braking ability should enter the escape ramp as early and safely as possible rather than trying to continue down the hill. Escape ramps are emergency facilities and must not be used for ordinary stopping, parking or turning.
Wikimedia.org • Marc Mongenet • CC BY-SA
Can you use a runaway truck ramp for normal stopping or parking?
No. An escape ramp is an emergency safety facility and should be kept clear for vehicles that have lost effective braking or control.
77. Radio service
A radio service is a radio broadcast that provides drivers with traffic information such as congestion, road closures, accidents, weather conditions or other events affecting a journey. Roadside signs may indicate a particular radio station and frequency where traffic information is available.
Drivers can tune to the indicated frequency to receive local traffic information while travelling through the area. The service is informational and does not replace traffic signs, signals or instructions from authorised persons.
Wikimedia.org • Marc Mongenet • CC BY-SA
Do radio traffic reports override road signs?
No. Radio information can help drivers anticipate conditions and choose a route, but drivers must continue to obey traffic signs, signals, road rules and instructions from authorised persons.
78. Oversize load
An oversize load is a load that causes a vehicle or vehicle combination to exceed the normally permitted dimensions for road traffic, such as maximum length, width or height. Oversize loads often involve large machinery, construction components or other items that cannot reasonably be divided into smaller loads.
Transporting an oversize load may require a special permit, an approved route, warning signs, lights or escort vehicles. Drivers must comply with the conditions imposed by the authorities responsible for the roads on which the transport takes place.
Wikimedia.org • Alain GAVILLET • CC BY
Why might an oversize load need an escort vehicle?
An escort can warn other road users and help an unusually large vehicle negotiate its planned route. The required escorts depend on local rules and the transport’s dimensions and weight. Do not assume a private escort has police powers to stop or direct traffic; British guidance expressly distinguishes those roles.
🔗 assets.publishing.service.gov.uk • Highways England, abnormal-load self-escort guidance
79. City limit
A city limit is a boundary or roadside indication showing that a driver is entering or leaving a named city, town, village, locality or municipality. It is commonly marked by a place-name or boundary sign.
The meaning of these signs varies between countries. A city-limit or locality sign may identify an administrative boundary, a named settlement or a traffic-related boundary. It does not necessarily mark the beginning or end of a legally defined built-up area, and passing the sign does not always change the applicable speed limit or other traffic rules.
Wikimedia.org • Marc Mongenet • CC BY-SA
What is a city limit?
A city limit identifies the boundary of a named city, town or municipality. A roadside place-name or boundary sign may identify that boundary, a locality or a legally defined built-up area; its exact meaning depends on the sign system.
🔗 gov.uk • UK Department for Transport, Know Your Traffic Signs, boundary signs
City limit.
End of city limit.
Does a city-limit sign always mark a built-up area?
No. A city-limit or locality sign may simply identify a place or administrative boundary. A legally defined built-up area can use a different sign or definition.
🔗 gov.uk • UK Department for Transport, Know Your Traffic Signs, boundary signs
What is the difference between a city limit and a built-up area?
A city limit identifies the boundary of a named place or administrative area. A built-up area is a traffic-law concept that may affect rules such as default speed limits. The two boundaries can coincide, but they do not have to.
🔗 gov.uk • UK Department for Transport, Know Your Traffic Signs, boundary signs
80. Hospital
A hospital is a healthcare facility where patients receive medical examination, treatment, surgery, emergency care or other specialised health services. Hospitals may serve local communities, large regions or specialised medical needs.
Road signs may direct drivers toward a hospital using a medical or hospital symbol. Drivers should follow the applicable direction signs and take particular care around hospital entrances, where ambulances, pedestrians and other vehicles may be entering or leaving.
Wikimedia.org • Marc Mongenet • CC BY-SA
What should drivers watch for near a hospital?
Drivers should watch carefully for ambulances, pedestrians, cyclists and vehicles entering or leaving hospital grounds and follow any local traffic restrictions or signs.
🔗 gov.uk • Great Britain Highway Code, Rules 204–206 and 219; national guidance example
81. Parking garage
A parking garage is a building or covered structure designed for parking motor vehicles. It may contain one or more levels and can be located above ground, underground or as part of another building such as a shopping centre, office complex or transport hub.
Parking garages are commonly indicated by parking or covered-parking signs. Drivers should follow the signs, lane markings, height restrictions, payment conditions and other rules applying inside the facility.
Wikimedia.org • Marc Mongenet • CC BY-SA
What should you check before entering a parking garage?
Check the entrance signs, vehicle-height restrictions, opening conditions, parking rules and payment requirements before entering.
🔗 oxford.gov.uk • Oxford City Council, Redbridge Park and Ride
82. Passing place
A passing place is a widened section beside or within a narrow road where vehicles can move aside so that traffic travelling in opposite directions can pass safely. Passing places are commonly used on single-track roads or other roads that are too narrow for two vehicles to pass each other normally.
Drivers should approach passing places at a suitable speed, cooperate with oncoming traffic and avoid blocking the widened area unnecessarily. The priority rules and signs used at passing places vary between countries.
Wikimedia.org • Marc Mongenet • CC BY-SA
Who has priority at a passing place?
The applicable rule depends on the country and road layout. Drivers should slow down, cooperate with approaching traffic and use the passing place safely rather than assuming automatic priority.
83. Pedestrian overpass
A pedestrian overpass is a bridge or elevated walkway that allows pedestrians to cross above a road, railway or other transport route without entering the traffic below. It separates pedestrian and vehicle movements and is commonly used where an at-grade crossing would be difficult or unsafe.
Pedestrian overpasses may be reached by stairs, ramps or lifts and can be indicated by pedestrian or direction signs. Their design and accessibility requirements vary between countries.
Wikimedia.org • Marc Mongenet • CC BY-SA
How can pedestrians access an overpass?
Depending on the design, access may be provided by stairs, ramps, lifts or a combination of these.
🔗 assets.publishing.service.gov.uk • DfT, Inclusive Mobility2021, footbridge access
84. Axle weight limit
An axle weight limit is the maximum permitted weight or load carried by a single axle of a vehicle. It limits how much force an axle and its wheels may transmit to the road, independently of the vehicle's total weight.
Axle weight limits help protect bridges and road surfaces from excessive loads and contribute to safe vehicle operation. A vehicle can comply with an overall weight limit while still exceeding an axle limit if its load is distributed incorrectly.
Wikimedia.org • Marc Mongenet • CC BY-SA
What does an axle weight limit mean?
An axle weight limit specifies the maximum permitted load carried by an individual axle or axle group. A vehicle exceeding the indicated axle load may not use the restricted road or structure.
Why are axle weight limits used?
They help prevent excessive stress on roads and structures such as bridges. They also ensure that vehicle loads are distributed safely between the axles.
85. Licence plate
A licence plate, also called a registration plate or number plate, is a plate displaying a unique registration identifier assigned to a vehicle by the competent registration authority. It allows the vehicle to be identified for purposes such as registration, traffic enforcement, taxation, insurance and parking control.
The appearance, format, placement and number of plates required vary between countries and vehicle categories. Drivers must ensure that required licence plates are correctly fitted, clearly visible and legible and must follow the local rules when a plate is lost, stolen, damaged or replaced.
Wikimedia.org • GilPe • CC BY-SA
What is a licence plate?
A licence plate is a plate displaying the registration identifier assigned to a vehicle. It allows authorities and other authorised systems to identify the vehicle's registration.
Is a licence plate the same as a registration plate?
Yes. Licence plate, registration plate and number plate are different terms commonly used for the plate displaying a vehicle's official registration number.
What should you do if a licence plate is lost or stolen?
Follow the local reporting and replacement procedure. For example, UK guidance says stolen plates should be reported to the police and DVLA, and replacement plates are needed before driving. Check the registration authority’s procedure for a lost plate; it may differ from the theft process.
86. Charging station
A charging station is a location equipped with one or more charging points where the battery of an electric or plug-in hybrid vehicle can be connected to an electricity supply and recharged. Charging stations may be located along public roads, in car parks, at service areas or on private property.
Charging spaces may be reserved for vehicles that are charging and can be subject to parking restrictions, time limits, payment requirements or other conditions. Drivers must follow the traffic signs, parking regulations and charging instructions applying at the location.
Wikimedia.org • JoachimKohler-HB • CC BY-SA
What is a charging station?
A charging station is a location where electric vehicles can be connected to an electricity supply to recharge their batteries. A station may contain one or several individual charging points.
🔗 tfl.gov.uk • Transport for London, electric vehicles and charging points; London example
Who can use an electric-vehicle charging station?
Charging stations are intended for vehicles that can be externally charged, such as battery-electric vehicles and plug-in hybrid vehicles. The exact vehicle categories permitted may be indicated by local signs or operator conditions.
🔗 tfl.gov.uk • Transport for London, electric vehicles and charging points; London example
Can a charging station have a maximum parking time?
Yes. Traffic signs, parking regulations or charging conditions may establish a maximum duration to encourage drivers to move their vehicles and make the charger available to others.
🔗 tfl.gov.uk • Transport for London, electric vehicles and charging points; London example
87. Dangers
A general danger warning sign warns road users of a hazard ahead that is not represented by a more specific warning sign. The particular danger may be explained by a supplementary panel, text, symbol or other indication placed with the warning sign.
Drivers should increase their attention, observe the road ahead and adapt their speed to the nature of the hazard and surrounding conditions. The exact appearance of the sign and the way the danger is identified vary between countries, so road users must follow the local traffic signs and regulations.
Wikimedia.org • Marc Mongenet • CC BY-SA
What does a general danger warning sign mean?
A general danger warning sign indicates that there is a hazard ahead that is not represented by a more specific warning sign in the local traffic-sign system.
Warning for a danger with no specific traffic sign.
What should you do when you see a general danger warning sign?
Increase your attention, observe the road and surroundings carefully and adapt your speed where necessary so that you can respond safely to the hazard.
Does the sign impose a specific speed limit?
Not normally. A warning sign alerts road users to danger rather than establishing a numerical speed limit. A separate speed-limit sign may be provided where a specific maximum speed is required.
88. Weather
Weather can have a major effect on driving conditions by reducing visibility, grip and vehicle control. Rain, fog, snow, ice, strong wind and bright sunlight can all increase the risk of an accident. Drivers should adapt their speed and following distance to the conditions, avoid sudden steering or braking on slippery roads and use the appropriate lights when visibility is reduced. Even when driving below the posted speed limit, a driver may still be travelling too fast for the weather and road conditions.
Wikimedia.org • Marc Mongenet • CC BY-SA
How does weather affect driving?
Weather can reduce visibility, tyre grip and vehicle control. Rain, snow, ice, fog, strong wind and bright sunlight may require drivers to reduce speed and increase their following distance.
🔗 gov.uk • Great Britain Highway Code, Rules 226–237; national guidance example
Why should you increase the following distance in bad weather?
Wet, snowy or icy roads can increase stopping distances. A larger following distance gives the driver more time and space to react and stop safely.
🔗 gov.uk • Great Britain Highway Code, Rules 226–237; national guidance example
What should you do when driving in heavy rain?
Reduce speed, increase your following distance, use the appropriate lights and avoid sudden steering or braking. Heavy rain can reduce visibility and increase the risk of aquaplaning.
🔗 gov.uk • Great Britain Highway Code, Rules 226–237; national guidance example
89. Turn on red
Turn on red is a traffic rule or signal arrangement that allows certain road users to proceed in a specified direction despite a red traffic light. It most commonly permits a turn after the driver has stopped or yielded, but the exact procedure varies between countries.
A turn on red is not universally permitted. It may be allowed generally, only when a specific sign or signal is present, or prohibited entirely. Drivers must always follow the local traffic lights, signs, priority rules and pedestrian or cyclist crossings before proceeding.
Wikimedia.org • MHM55 • CC BY-SA
What does turn on red mean?
Turn on red means that a road user may proceed in a specified turning direction despite a red traffic light when local law or a specific sign or signal permits it.
🔗 wegcode.be • Belgium, Road Code, Articles 61.1 and 67.3, signs B22/B23
🔗 dmv.ca.gov • California DMV, Driver Handbook, turns at red lights
Do you have to stop before turning on red?
Check the local rule for the particular sign and road user. Some systems require a complete stop before a permitted turn against red; others provide a specified yielding exception, such as certain Belgian cyclist signs. A separate green movement signal is a different form of permission and should not be confused with an exception to red.
🔗 wegcode.be • Belgium, Road Code, Articles 61.1 and 67.3, signs B22/B23
🔗 dmv.ca.gov • California DMV, Driver Handbook, turns at red lights
What should you do if you are unsure whether turning on red is allowed?
Remain stopped until a signal clearly permits you to proceed. Never pass a red light based only on what is permitted in another country.
🔗 wegcode.be • Belgium, Road Code, Articles 61.1 and 67.3, signs B22/B23
🔗 dmv.ca.gov • California DMV, Driver Handbook, turns at red lights
90. Pedestrian
A pedestrian is a person travelling on foot along or across a road, street, path or other public space. Depending on local traffic law, people pushing bicycles, wheelchairs, prams or certain other small devices may also be treated as pedestrians.
Pedestrians normally use pavements, sidewalks, footpaths and pedestrian areas where these are available. When crossing a road or walking where no suitable pedestrian facility exists, they must follow the applicable crossing rules, traffic lights and other local traffic regulations.
Wikimedia.org • Marc Mongenet • CC BY-SA
What is a pedestrian?
A pedestrian is primarily a person travelling on foot. Local traffic laws may also treat people pushing bicycles, wheelchairs, prams or certain other devices as pedestrians.
Which side of the road should pedestrians walk on when there is no pavement?
This depends on the country's traffic rules. Many countries require or recommend pedestrians to face approaching traffic, but the exact rule varies.
Do pedestrians always have priority at a pedestrian crossing?
The exact priority rule varies between countries. Drivers are commonly required to give way to pedestrians using or entering designated crossings, but pedestrians must still obey traffic lights and avoid entering the road dangerously.
91. Cyclist
A cyclist is a person who rides and controls a bicycle. Cyclists are road users and, in many countries, bicycles are legally treated as vehicles, meaning cyclists must follow many of the same traffic rules that apply to other drivers together with rules specifically intended for cycling.
Cyclists should use designated cycling facilities where required, obey traffic signs and signals and ride in a predictable and safe manner. The exact rules governing road position, priority, equipment and permitted cycling areas vary between countries.
Wikimedia.org • Marc Mongenet • CC BY-SA
Where should cyclists ride?
This depends on local rules. Cyclists may be required to use a cycle path or designated cycling facility, while in other situations they may ride on the carriageway.
92. Moped
A moped is a lightweight motor vehicle, usually with two or three wheels, whose power, engine capacity or maximum design speed is limited by law. Mopeds generally occupy a legal category between bicycles and motorcycles, although their exact classification varies between countries.
Special rules may apply concerning the minimum riding age, driving licence, helmet, registration, insurance, maximum speed and use of cycle paths or roadways. Riders must therefore follow the classification and traffic regulations applying in the country where they are travelling.
Wikimedia.org • Hubi47 • CC BY-SA
What is a moped?
A moped is a lightweight motor vehicle whose engine power, capacity or maximum design speed is restricted by law. The precise technical definition differs between countries.
🔗 gov.uk • Great Britain Highway Code, Rules 83–88; national guidance example
🔗 gov.uk • Great Britain Highway Code, Rules 221–223; national guidance example
Is a moped the same as a motorcycle?
Mopeds commonly form a lower-speed or lower-power vehicle category, but their legal relationship to motorcycles varies. Some traffic laws treat certain mopeds as motorcycles or apply other special rules. Check the local technical, access and licensing definitions.
🔗 gov.uk • Great Britain Highway Code, Rules 83–88; national guidance example
🔗 gov.uk • Great Britain Highway Code, Rules 221–223; national guidance example
Do moped riders have to wear a helmet?
Helmet requirements vary between countries, but an approved protective helmet is compulsory for moped riders in many jurisdictions. Passengers may also be required to wear one.
🔗 gov.uk • Great Britain Highway Code, Rules 83–88; national guidance example
🔗 gov.uk • Great Britain Highway Code, Rules 221–223; national guidance example
93. Motorcycle
A motorcycle is a motor-powered vehicle with two wheels, with or without a sidecar. Motorcycles include many different types and sizes of vehicles designed for road travel, recreation, touring or other purposes.
Motorcyclists should maintain full control of the motorcycle, obey the applicable traffic rules and use appropriate protective equipment. Licensing, helmet, equipment and road-use requirements vary between countries.
Wikimedia.org • Marc Mongenet • CC BY-SA
What protective equipment should a motorcyclist use?
Motorcyclists should use an approved helmet and suitable protective clothing. The exact mandatory equipment depends on the country's traffic laws.
🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Article 27; 🔗 gov.uk • UK Highway Code, motorcyclists, Rules 83–88
94. Car
A car is a motor vehicle primarily designed to transport a small number of people and their luggage on roads. Cars may be powered by petrol, diesel, electricity, hydrogen or a combination of different energy sources.
Drivers must comply with the applicable requirements concerning the driving licence, vehicle registration, insurance, technical condition, seat belts and passenger safety. Speed limits, equipment requirements, road access and other traffic rules vary between countries, so drivers must follow the local traffic signs and regulations.
Wikimedia.org • Marc Mongenet • CC BY-SA
What is a car?
A car is a motor vehicle primarily designed to carry a relatively small number of passengers and their luggage on roads.
🔗 gov.uk • Great Britain Highway Code, Rules 83–88; national guidance example
🔗 gov.uk • Great Britain Highway Code, Rules 221–223; national guidance example
Is a car the same as a motor vehicle?
No. A car is a type of motor vehicle. The broader category of motor vehicles can also include motorcycles, buses, trucks, mopeds and other powered vehicles, depending on local legal definitions.
🔗 gov.uk • Great Britain Highway Code, Rules 83–88; national guidance example
🔗 gov.uk • Great Britain Highway Code, Rules 221–223; national guidance example
Must people in a car wear seat belts?
Where seat belts are fitted, drivers and passengers are generally required to wear them correctly. Exact requirements and exemptions vary between countries.
🔗 gov.uk • Great Britain Highway Code, Rules 83–88; national guidance example
🔗 gov.uk • Great Britain Highway Code, Rules 221–223; national guidance example
95. Truck
A truck is a motor vehicle designed primarily for transporting goods. Trucks range from relatively small delivery vehicles to large heavy goods vehicles and articulated combinations used for long-distance freight transport.
Because trucks are generally larger, heavier and slower to manoeuvre than passenger cars, they require more space for turning and braking and often have larger blind spots. Specific speed, lane-use, overtaking and access rules may apply depending on the vehicle's weight and the country.
Wikimedia.org • Marc Mongenet • CC BY-SA
Why should other road users take extra care around trucks?
Trucks may have larger blind spots, longer stopping distances and wider turning paths than smaller vehicles, so other road users should avoid remaining unnecessarily close beside or in front of them.
🔗 gov.uk • Great Britain Highway Code, Rules 83–88; national guidance example
🔗 gov.uk • Great Britain Highway Code, Rules 221–223; national guidance example
96. Bus
A bus is a motor vehicle designed to transport multiple passengers, usually along roads as part of public transport, school transport, private transport or another passenger service. Buses generally have more passenger capacity than cars and may be designed to carry seated passengers, standing passengers or both.
Special rules may apply to buses concerning the driving licence, passenger capacity, speed limits, seat belts, bus lanes, stops and passenger boarding. The legal classification of buses and coaches and the rules applying to them vary between countries, so drivers and passengers must follow the local traffic regulations.
Wikimedia.org • Moliva • CC BY-SA
What is a bus?
A bus is a motor vehicle designed to transport a relatively large number of passengers. It may be used for public transport, school transport, private services or other passenger transport.
🔗 gov.uk • Great Britain Highway Code, Rules 83–88; national guidance example
🔗 gov.uk • Great Britain Highway Code, Rules 221–223; national guidance example
Do buses always have priority when leaving a bus stop?
No. Some countries require other drivers to give way to buses leaving designated stops, particularly in urban areas, while others apply the normal merging rules.
🔗 gov.uk • Great Britain Highway Code, Rules 83–88; national guidance example
🔗 gov.uk • Great Britain Highway Code, Rules 221–223; national guidance example
Do buses have special speed limits?
They can. Some countries impose lower maximum speeds on buses than on passenger cars, particularly on high-speed roads. Different limits may apply to buses and coaches.
🔗 gov.uk • Great Britain Highway Code, Rules 83–88; national guidance example
🔗 gov.uk • Great Britain Highway Code, Rules 221–223; national guidance example
97. Police
Police are public authorities responsible for enforcing laws, maintaining public safety and managing situations that may affect road traffic. In traffic, police officers may control vehicles, enforce traffic rules, investigate collisions, direct traffic and respond to emergencies.
Road users must follow lawful instructions given by police officers or other authorised traffic-control personnel. Police directions may temporarily override traffic lights, road signs or normal traffic arrangements, depending on local law.
Wikimedia.org • Kevin.B • CC BY-SA
What is the role of police in road traffic?
Police help enforce traffic law, investigate collisions and respond to risks on the road. For example, Greater Manchester Police describe targeted road enforcement, a round-the-clock roads-policing response and specialist serious-collision investigation. Exact responsibilities and powers vary by jurisdiction.
🔗 gmp.police.uk • Greater Manchester Police, Roads Policing Strategy2024–2026
Must you obey a police officer directing traffic?
Yes. Lawful directions given by an authorised police officer must be followed. In many countries, those directions take precedence over traffic lights, road signs and normal priority rules.
What should you do if police signal you to stop?
Slow down, follow the officer's directions and stop at a safe location as instructed. Do not make sudden movements or continue driving unless directed to do so.
98. Ambulance
An ambulance is a vehicle equipped and used to provide emergency medical assistance or transport patients to or between healthcare facilities. Ambulances may carry medical equipment and trained personnel who can provide treatment during transport.
During an emergency response, an ambulance may use warning lights and a siren and may receive special priority or exemptions from certain traffic rules. Other road users must follow the local rules for emergency vehicles, make sufficient space and avoid obstructing their passage.
Wikimedia.org • Schutz & Rettung Zürich • CC BY-SA
What is an ambulance?
An ambulance is a specially equipped vehicle used to provide emergency medical assistance and transport sick or injured people.
🔗 gov.uk • Great Britain Highway Code, Rule 219, emergency vehicles; national guidance example
What should you do when an ambulance approaches?
Make space safely for an ambulance on an emergency response, following the local rules and any lawful directions. Slow down or stop where necessary without sudden or dangerous movements. Do not assume that its emergency status allows you to pass a red light or disregard another traffic control.
🔗 gov.uk • Great Britain Highway Code, Rule 219, emergency vehicles; national guidance example
Can an ambulance exceed the speed limit?
Many countries permit emergency vehicles to depart from certain normal speed rules during an urgent mission, subject to safety requirements and national legislation.
🔗 gov.uk • Great Britain Highway Code, Rule 219, emergency vehicles; national guidance example
99. Tailgating
Tailgating means driving too closely behind another vehicle without leaving enough distance to react and stop safely if the vehicle ahead slows down or stops suddenly. The safe following distance depends on factors such as speed, road conditions, weather and visibility.
Drivers should leave sufficient space between their vehicle and the vehicle ahead and increase that distance in rain, snow, fog or other conditions that increase stopping distance.
Wikimedia.org • Marc Mongenet • CC BY-SA
When should you increase your following distance?
You should increase the distance in conditions such as rain, snow, ice, fog, darkness or poor road surfaces and whenever visibility or tyre grip is reduced.
🔗 gov.uk • Great Britain Highway Code, Rules 226–237; national guidance example
100. European emission standard
A European emission standard, commonly called a Euro standard, is a European vehicle classification based on limits for pollutants emitted by vehicles and their engines. Successive standards, such as Euro 4, Euro 5 and Euro 6, introduced progressively stricter requirements for pollutants such as nitrogen oxides, particulate matter, carbon monoxide and hydrocarbons.
A vehicle's Euro standard is determined as part of its type approval and depends on factors including the vehicle category, fuel type and applicable emissions legislation when it was approved. Euro standards may also be used by authorities to determine access to low-emission zones, but local access rules vary between countries and cities.
Wikimedia.org • Rfeba • CC0
What is a European emission standard?
A European emission standard, or Euro standard, classifies vehicles according to the emissions requirements they had to satisfy when approved for use in the European market.
🔗 consilium.europa.eu • Council of the EU, Euro 7 adoption explanation, 12 April 2024
What do Euro 4, Euro 5 and Euro 6 mean?
Euro 4, Euro 5 and Euro 6 identify successive stages of European vehicle-pollutant requirements. The applicable limits depend on the vehicle, engine and pollutant, so a higher number does not mean that every individual numerical limit changed. Later stages can also alter testing and durability requirements.
🔗 consilium.europa.eu • Council of the EU, Euro 7 adoption explanation, 12 April 2024
Can petrol and diesel vehicles with the same Euro number have different emission limits?
Yes. The applicable emission limits and testing requirements can differ according to the vehicle category, engine and fuel type even when vehicles belong to the same general Euro generation.
🔗 consilium.europa.eu • Council of the EU, Euro 7 adoption explanation, 12 April 2024