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ULEZ compliant diesel cars

A diesel car must have Euro 6 to use London's ULEZ for free. If a diesel car was first registered from September 2015, it usually meets the standard.

We read your vehicle's age from the plate, and the answer is based on that age. Your plate stays on your device.

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The Ultra Low Emission Zone (ULEZ) in London

Most diesel cars meet the rules if first registered fromSept 2015

Type your car's number plate, or the year it was first registered, to get your own answer. Any that don't meet the rules are charged £12.50 a day.

No year entered yet19901995200020052010201520202025Euro 6 usually from September 2015Enter the year to place your vehicleNo year entered yet1995200520152025Euro 6 from Sep 2015Enter the year

TfL's official vehicle checker reads the record held for your vehicle and gives the final answer.

Compare your vehicle across the UK's other zones

Which diesels meet the ULEZ rules?

When a diesel's engine satisfies Euro 6, the car counts as compliant. From September 2014, many new models were already meeting it, and every diesel car sold new had to comply once September 2015 arrived. Almost every diesel first registered from September 2015 passes, and one first registered a year earlier may pass.

For diesel, the tighter rule concerns nitrogen oxides, gases that diesel engines release in larger amounts. Most diesels registered from 2011 to 2015 are Euro 5, which fails the ULEZ standard, so you pay £12.50 a day.

What the ULEZ requires by vehicle

ULEZ rule for each vehicle type
VehicleStandard it needsUsually meets it
Diesel carEuro 6Most diesel cars first registered in September 2015 or later
Diesel vanEuro 6Diesel vans sold new from September 2016

These figures come from TfL.

The numbers on your plate and what they say

A plate's two numbers tell you when the car first went on the road. For example, a car with 14 on its plate was first registered between March and August 2014, and a car with 64 between September 2014 and February 2015. Type your plate and the checker works this out for you. A private plate, or one moved over from another car, can be older or newer than the car itself, so use the year in the logbook instead.

Every plate number and its date since September 2001
Plate numbers listed by year
YearMarch to AugustSeptember to February
2001Old style plate51
20020252
20030353
20040454
20050555
20060656
20070757
20080858
20090959
20101060
20111161
20121262
20131363
20141464
20151565
20161666
20171767
20181868
20191969
20202070
20212171
20222272
20232373
20242474
20252575
20262676

Older plates, from before September 2001, begin with a letter that gives the age instead, like Y for 2001. The checker understands those as well, so just type one in.

These figures come from the DVLA.

How to know for sure about your diesel

Check box D.2 in your V5C logbook. According to TfL, newer cars may list it there. Euro 6 is what you want to see, sometimes shown as EURO 6b or something similar. If it's there, your car meets the ULEZ standard no matter what year it was registered. If you don't find it, ask the manufacturer, or use TfL's vehicle checker to confirm.

Diesel car questions people often ask

Do Euro 5 diesel cars meet the ULEZ rules?

No. Diesel cars must meet Euro 6 for the ULEZ. Inside the zone, a Euro 5 diesel is charged £12.50 each day.

Does a 2015 diesel pass the ULEZ check?

Diesels first registered from September 2015 are almost always Euro 6, so they're compliant. One first registered earlier in 2015 might be either Euro 5 or Euro 6, and TfL's vehicle checker can confirm yours.

Is it possible to convert my diesel car to Euro 6?

No approved retrofit exists to bring a diesel car to Euro 6 for the ULEZ. Some buses, lorries and black cabs are covered by retrofits; private cars are not.