Clean Air Zone Check: Is This Car Compliant?

Is my car clean air zone compliant?

Enter the registration in the search box above. The free check reads the vehicle's DVLA record (fuel type, date of first registration and Euro status where it is recorded) and shows whether the car is likely to meet the standard used by every UK clean air zone, low emission zone and the London ULEZ, together with its MOT history, tax status and mileage. The full report adds the manufacturer's specification, the recorded road tax cost and the finance, write-off and stolen checks.

Our result is an estimate from the record. The official answer for any English zone comes from GOV.UK's Drive in a clean air zone service, which checks the registration against every live zone and takes payment; Scotland's zones have their own checker at lowemissionzones.scot, and London uses TfL's. Use our check to see where a car stands before you buy it, and the official checker before you drive.

What a clean air zone is

A clean air zone (CAZ) is an area, usually a city centre, where the most polluting vehicles pay a daily charge to drive, or are not allowed in at all. The aim is to cut nitrogen dioxide, which comes mostly from older diesel engines, so the test is the vehicle's Euro emissions standard, not its CO2 (which sets road tax; see the CO2 emissions check), its tax band or its age. Cameras read number plates, the registration is matched to the DVLA record, and a non-compliant vehicle is charged for each day it is driven inside the zone.

England uses charging clean air zones, with four classes that decide which vehicles pay. Scotland uses low emission zones (LEZs) that ban non-compliant vehicles outright and issue penalties. London's ULEZ works like a class D zone covering the whole of Greater London; our ULEZ check covers it in detail.

Clean air zone classes A to D

So a private car is only ever charged in a class D zone. A van, pickup or camper registered as a goods vehicle (type approval N1) is charged from class C upwards, which catches many private owners; the vehicle type approval check shows how a vehicle is classed.

The standard: Euro 4 petrol, Euro 6 diesel

Every UK zone uses this same standard, so a car that meets the London ULEZ meets Birmingham, Bristol, Glasgow and the rest. The dates are a guide: the individual vehicle's Euro standard decides, and a diesel registered in 2014 to 2016 can fall either side.

Live clean air zones and low emission zones in the UK

Zones, classes and charges are set by each council and change; the figures shown are those we are confident of at the time of writing. GOV.UK's vehicle checker gives the current charge for any registration in any English zone.

Scotland's low emission zones: penalties, not charges

Glasgow, Edinburgh, Aberdeen and Dundee don't sell daily passes. A non-compliant vehicle (Euro 4 petrol, Euro 6 diesel, no motorcycle rule) simply must not enter the zone, and each entry brings a penalty charge notice. The penalty starts at £60, halved if paid within 14 days, and doubles with each further breach within 90 days, up to a cap for cars. Blue badge holders, historic vehicles and emergency vehicles are among the exemptions; a blue badge exemption has to be registered in advance. The zones run every day, all day.

Oxford's zero emission zone and Greater Manchester

Oxford runs a small zero emission zone pilot on a few city-centre streets. It is stricter than a clean air zone: every petrol, diesel and hybrid vehicle pays during the day, with the charge set by emission band and by the council, and only zero-emission vehicles drive free. Residents and some others get discounts.

Greater Manchester put its clean air zone signs up in 2022 but never switched the charging on; an investment-led plan was agreed with the government instead, so no vehicle is charged there.

How to pay, and what happens if you don't

• For Birmingham, Bristol, Bath, Bradford, Portsmouth, Sheffield and Tyneside, pay through GOV.UK's Drive in a clean air zone service. You can pay from 6 days before to 6 days after the day you drive in the zone.
• Miss the window and the council issues a penalty charge notice of £120, reduced to £60 if paid within 14 days, on top of the daily charge.
• Each zone charges once per day (midnight to midnight), however many times you drive in and out.
• London is paid separately through TfL, and the Scottish zones can't be paid at all: compliant or stay out.

How our free check helps

The compliance test is the same everywhere, so one look at the record tells you most of what you need:

• Fuel type decides whether the Euro 4 or Euro 6 rule applies. If the record is wrong (a petrol car shown as diesel, say) the official checkers will be wrong too; the fuel type check explains how to correct it.
• Date of first registration shows which standard was in force when the vehicle was new. See the first registration date check.
• Euro status, where the DVLA holds it, settles the question. It is on record for many vehicles registered from around 2011.
• Type approval category (M1 car, N1 van) tells you which zone classes can charge the vehicle at all.
• Likely compliance is shown from those four facts, with a note when the record isn't definitive.

What the check can't do is replace the official answer: we tell you what to expect; the GOV.UK checker tells you what you'll be charged.

Exemptions and discounts

Each council sets its own, so always confirm locally, but the common ones are:

• Historic vehicles in the historic tax class (built more than 40 years ago).
• Vehicles in the disabled or disabled passenger vehicle tax class, and blue badge holders in some zones (Scotland needs the badge registered).
• Military, agricultural and showman's vehicles, and some specialist vehicles.
• Local exemptions: some zones give time-limited exemptions or discounts to residents, workers, hospital patients or small businesses, usually on application.

Buying a car near a clean air zone

If you'll drive into Birmingham, Bristol, London or a Scottish city regularly, compliance is worth hundreds or thousands of pounds a year, and it shows in used prices. Before you buy, run the free check, confirm the Euro status on the official checker, look at the MOT history for emissions failures and particulate filter advisories, and run a full car history check for finance, write-offs and stolen markers.

Clean air zone check FAQs