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  2. European emission standards - Wikipedia

    en.wikipedia.org/wiki/European_emission_standards

    Petrol-powered vehicles are exempted from particulate matter (PM) standards through to the Euro 4 stage, but vehicles with direct injection engines are subject to a limit of 0.0045 g/km for Euro 5 and Euro 6. A particulate number standard (P) or (PN) has been introduced in 2011 with Euro 5b for diesel engines and, in 2014, with Euro 6 for ...

  3. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    Several local authorities in the UK have introduced Euro 4 or Euro 5 emissions standards for taxis and licensed private hire vehicles to operate in their area. [69] [70] [71] Emissions tests on diesel cars have not been carried out during MOTs in Northern Ireland for 12 years, despite being legally required. [72]

  4. London low emission zone - Wikipedia

    en.wikipedia.org/wiki/London_low_emission_zone

    The LEZ emissions standards are based on European emission standards relating to particulate matter (PM), which are emitted by vehicles, which have an effect on health. The following vehicles are not charged: [21] Lorries, buses, and coaches that meet the Euro 6 emission standard. Vans and minibuses not exceeding 3.5 tonnes; All cars and ...

  5. New low emission zones in Scottish cities will help save ...

    www.aol.com/low-emission-zones-scottish-cities...

    Edinburgh, Aberdeen and Dundee have put the measures in place.

  6. Clean Air Zone - Wikipedia

    en.wikipedia.org/wiki/Clean_Air_Zone

    A Clean Air Zone (CAZ) is an area in the United Kingdom where targeted action is taken to improve air quality. [2] A CAZ can be non-charging or charging. [citation needed] ...

  7. Ultra Low Emission Zone - Wikipedia

    en.wikipedia.org/wiki/Ultra_Low_Emission_Zone

    The criteria for charging is based on European emission standards: Motorcycles that do not meet Euro 3 standards (most vehicles pre-2007) Petrol cars and vans that do not meet Euro 4 standards (most vehicles pre-2006) Diesel cars and vans that do not meet Euro 6 standards (most vehicles pre-2015)

  8. Crit'air - Wikipedia

    en.wikipedia.org/wiki/Crit'air

    There are six different coloured vignettes, relating to six categories. The category into which a vehicle falls depends on the engine type (electric, hydrogen, petrol or diesel) and the European emission standard (Euro standard). Where the emission standard is not recorded, the date of first registration is used instead to determine a category.

  9. List of cities in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/List_of_cities_in_the...

    Thirty-two cities have a Lord Provost (in Scotland) or a Lord Mayor (in England, Wales, and Northern Ireland), see List of lord mayoralties and lord provostships in the United Kingdom. The six cities where the Lord Mayor or Lord Provost has the right to the style The Right Honourable are York, the City of London, Edinburgh, Glasgow (since 1912 ...