Drink-driving laws in the UK are poised for significant changes in 2025 as the government proposes to lower the legal alcohol limits for drivers in England and Wales.
If you drive, knowing the current rules and what’s coming is crucial for your safety and legal compliance.
Current drink-driving limits in the UK
At present, the maximum permitted blood alcohol content (BAC) for drivers in England and Wales is set at 80 micrograms of alcohol per 100 millilitres of blood (equivalent to 35 micrograms per 100 millilitres of breath).
This limit is notably higher than Scotland’s, which has been at 50 micrograms per 100 millilitres of blood since 2014 – among the strictest in Europe.
New drink-driving limits in the UK to be set
The UK government has announced plans to reduce the drink-driving limit in England and Wales to 50 micrograms per 100 millilitres of bloodmatching Scotland’s limit. More recently, Labour has proposed an even lower threshold of 22 micrograms per 100 millilitres of breath to further enhance road safety.
This move is part of a wider strategy to reduce casualties caused by drink-driving, which despite slight improvements, remain stubbornly high. In 2023, there were over 6,300 casualties linked to drink driving in the UK, with 260 fatalities.
Why are these changes being made?
Experts agree that even low levels of alcohol impair driving ability – reaction times slow and judgement deteriorates significantly. Research shows that drivers at the current 80 microgram limit are six times more likely to be involved in fatal accidents compared to those who are completely sober.
Since Scotland lowered its limit in 2014, police data showed an immediate decline in drink-driving offences, alongside heightened public awareness and support for the change. Similar results are expected in England and Wales with the new proposals.
What else is changing?
Along with reduced drink-drive limits, the government plans to introduce stricter regulations for elderly driversincluding mandatory eye tests for those over 70 years old to maintain their driving licences. There may also be new rules introducing penalty points for passengers who don’t wear seatbelts.
Additionally, the government is considering adopting EU-inspired safety measures such as mandatory alcolocks (breathalyser devices fitted to vehicles) for repeat offenders, preventing cars from starting if the driver is over the limit. These measures aim to target habitual drink drivers and drug driving offences more effectively.
What does this mean for drivers?
Determining exactly how much you can drink before you are over the legal limit is complicated. It depends on factors such as weight, sex, metabolism, recent food intake, and the type of alcohol consumed. There is no simple conversion of drinks to BAC that applies to everyone.
The safest approach is not to drink at all if you intend to drive. Even small amounts can impair your abilities and risk your life and others’.
How do UK drink-drive limits compare to the rest of Europe?
While England and Wales currently have among the highest legal BAC limits in Europe, many countries have much lower or zero-tolerance policies, especially for commercial and novice drivers. With the proposed changes, England and Wales would align more closely with European standards.
The government’s initiative to lower the drink-driving limit reflects growing evidence of alcohol’s dangers on roads and an urgent need to reduce casualties. The changes, combined with better enforcement and public education, aim to make driving safer for everyone.
