Emissions standard
Euro 7
Checked on 24 April 2024.EUR-Lex, Regulation (EU) 2024/1257, Annex I table 1: Euro 7 exhaust emission limits for M1 and N1 (as of 24 April 2024)
Clean air zone verdict for a car at this standard
Compliant
A petrol car at Euro 7 meets the Euro 4 pass mark every UK zone applies to petrol.
Compliant
A diesel at Euro 7 meets the Euro 6 pass mark every UK zone applies to diesel.
What is Euro 7?
The tailpipe limits barely move. What changes is what is measured: particles are counted down to 10 nanometres rather than 23, the particulate limit applies to every petrol engine rather than direct injection only, and for the first time the regulation sets limits for brake particles and tyre abrasion. It applies to new car registrations from 29 November 2027.
Euro 7 limits, in g/km
| Pollutant | Petrol | Diesel | Change from Euro 6 |
|---|---|---|---|
| Carbon monoxide (CO) | 1 | 0.5 | 0 per cent lower on diesel |
| Hydrocarbons (HC) | 0.1 | No limit set | |
| Hydrocarbons and NOx combined | No limit set | 0.17 | 0 per cent lower on diesel |
| Nitrogen oxides (NOx) | 0.06 | 0.08 | 0 per cent lower on diesel |
| Particulate matter (PM) | 0.0045 | 0.0045 | 0 per cent lower on diesel |
This stage also sets a particle number limit of 6e+11 particles per kilometre, which counts the particles rather than weighing them. A filter can pass on mass and still fail on number, which is why the second limit was added.
Common questions
- When did Euro 7 come in?
- It applied to new car registrations from 29 November 2027, having applied to new type approvals from 29 November 2026. The registration date is the one that matches a DVLA record, so it is the one to use when reading a car's age against a standard.
- Is a Euro 7 car allowed in a clean air zone?
- A petrol car meets the Euro 4 pass mark and a diesel meets the Euro 6 pass mark, so a Euro 7 car of either fuel drives in free.
- What does Euro 7 actually limit?
- The tailpipe limits barely move. What changes is what is measured: particles are counted down to 10 nanometres rather than 23, the particulate limit applies to every petrol engine rather than direct injection only, and for the first time the regulation sets limits for brake particles and tyre abrasion. It applies to new car registrations from 29 November 2027.
- Where is the standard written on my car?
- Section D.2 of the V5C. It is also on the certificate of conformity the manufacturer issued, which is the document an operating authority will accept if a zone has the wrong figure on record for your car.