Key points
- Check ULEZ compliance by registration via TfL or a REGUP vehicle check
- ULEZ covers all London boroughs since August 2023, charged 24/7 except Christmas Day
- Petrol needs Euro 4 (approx. 2006+); diesel needs Euro 6 (approx. Sept 2015+)
- Electric and hydrogen vehicles are exempt
- Other UK cities (Birmingham, Bath, Bradford, Bristol) run separate Clean Air Zones
- Non-compliant vehicles can lose resale value in ULEZ/CAZ areas
What is the ULEZ?
The Ultra Low Emission Zone is an area in London where vehicles must meet minimum emission standards or pay a daily charge. Since August 2023, the ULEZ covers all London boroughs. The charge applies 24 hours a day, every day except Christmas Day. Non-compliant cars pay a daily fee. Motorcycles, vans and larger vehicles have separate standards and charges.
What are the ULEZ emission standards?
For cars, the standards are based on the Euro emission classification.
Fuel type | Minimum standard | Typically compliant from |
|---|---|---|
Petrol | Euro 4 | Approximately 2006 onward |
Diesel | Euro 6 | Approximately September 2015 onward |
Electric / hydrogen | Exempt | All |
Hybrid | Must meet petrol or diesel standard | Depends on engine |
These are guidelines based on typical registration dates. The only way to confirm compliance is to check the specific vehicle by registration.
How do you check ULEZ compliance by registration?
- Go to the TfL ULEZ checker at check-your-vehicle and enter the registration.
- Or enter the registration in a REGUP emissions check to see CO2, Euro standard and ULEZ status alongside other vehicle data.
- The result will confirm whether the vehicle is compliant or subject to the daily charge.
What about Clean Air Zones outside London?
Several UK cities operate Clean Air Zones (CAZs) with their own rules and charges. Birmingham, Bath, Bradford and Bristol have active zones, and others are planned. The emission standards are usually similar to ULEZ but the boundaries, charges and exemptions differ. Check the specific city Clean Air Zone rules before driving in.
What if my car is not compliant?
Pay the daily charge each time you drive in the zone.
Apply for an exemption if your vehicle qualifies (for example, disabled tax class, historic vehicle over 40 years old).
Switch to a compliant vehicle. Check any car you are considering buying before committing.
Use public transport, cycling or car-sharing for journeys into the zone.
Yes. Non-compliant vehicles, especially older diesels, have lost value in areas served by ULEZ and Clean Air Zones. If you are buying a car that you may need to drive in London or another zone, ULEZ compliance is a factor in both the running cost and the resale value. Checking before you buy avoids a costly surprise.
Frequently asked questions
Is the ULEZ check free?
Yes. The TfL checker is free by registration. REGUP includes emissions data in its vehicle check alongside other details.
Do I have to pay ULEZ if I am just driving through London?
Yes. The charge applies to all non-compliant vehicles driven within the zone, including those passing through.
Are hybrid cars ULEZ compliant?
It depends on the combustion engine. A hybrid must meet Euro 4 (petrol) or Euro 6 (diesel) to be compliant. Check the specific vehicle.
What is the ULEZ daily charge?
The charge changes over time. Check the current rate on the TfL website before driving.