UK Adopts Euro 7: What the Battery and Brake Rules Mean for Car Buyers
Great Britain will follow the European Union and adopt the Euro 7 standard for new vehicles. The Department for Transport confirmed that there will be no separate British approval: EU and UNECE type approvals will apply, so a model approved for the EU can be sold in Great Britain without extra testing, electrive reported on 28 October.
Key takeaways
- Cars and vans: all new registrations from November 2027.
- Electric and plug-in hybrid cars must keep at least 80% of battery capacity after five years or 100,000 km, and at least 72% after eight years or 160,000 km.
- Every new electric and plug-in hybrid car gets a standard on-board battery health (state of health, SOH) display.
- Diesel cars must meet the same NOx limit as petrol cars: 60 mg/km.
Euro 7 is the first emissions standard that also covers electric cars, with rules on battery life, brake dust and tyre wear.
Battery rules: the biggest change for EV buyers
Until now, battery life has depended on each manufacturer's warranty. Euro 7 sets a legal minimum for passenger cars: 80% of the original capacity after five years or 100,000 km, and 72% after eight years or 160,000 km. Manufacturers must also fit a standardised battery health monitor, so that buyers of used electric cars can compare battery condition across brands. For the used EV market this matters as much as the minimum figures: today a battery health check often needs a dealer visit or a paid test.
Brakes, tyres and exhaust
- Brakes: fixed limits for brake particles. Electric cars gain from regenerative braking, which wears the brake discs and pads less.
- Tyres: limits on tyre wear and microplastics will come in step by step. Heavy and wide electric cars are most affected.
- Exhaust: NOx for diesel cars falls to the petrol level of 60 mg/km, and emission values must hold for ten years or 200,000 km in real-world driving.
Dates
| Vehicles | Euro 7 applies |
|---|---|
| Cars and light vans | All new registrations from November 2027 |
| Trucks and buses, new types | May 2028 |
| Trucks and buses, all new registrations | May 2029 |
| Small manufacturers (under 2,500 vehicles a year) | 1 July 2030 |
Cars already on the road are not affected, and existing clean air zones such as London's ULEZ keep their current rules for now.
What it means for you
If you are buying a new car in 2026 or 2027, nothing changes immediately: Euro 7 applies to registrations from late 2027. For those planning to buy a used electric car in a few years, the new rules mean a clearer battery health reading and a legal minimum for capacity. Diesel buyers can expect fewer new diesel models, as meeting the petrol NOx limit adds cost.
More on battery cars in our electric cars section.
Sources
- electrive: Rules for battery lifespan: UK adopts EU Euro 7 standard (28 Oct 2026) (accessed 29 Oct 2026)
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