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What Is The Legal Limit Of Alcohol A Person Can Drink, And Still Be Allowed To Drive?

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Pippa Corbett Profile
Pippa Corbett answered
The legal drink-driving limit is set in terms of BAC (blood alcohol concentration).

The legal limit varies from country to country, so the amount of alcohol you can legally have in your blood and still get behind the wheel will vary, depending on where you live.

In the United States, the drink drive limit is 0.08% BAC by volume. In the United Kingdom, legal limits are set for breath-, urine- and blood-testing, individually.

How much alcohol can I drink before I drive?
In the UK, it's illegal to drive a vehicle if you have 80 mg of alcohol per 100 ml of blood. You'd also be prosecuted for drink-driving if you're found to have 35 mg of alcohol per 100 ml of breath, or 107 mg per 100 ml of urine.

Legislation that deals with drunk drivers also varies depending on geographic location. For example, the US recognizes two separate offences for 'driving under the influence of alcohol' (DUI) and 'driving while intoxicated/impaired' (DWI).

Most countries set their drink driving limits between 0.4-0.8% BAC, although countries like Brazil and Afghanistan have a no-tolerance approach to alcohol, and will prosecute anyone who drives with alcohol in their system.

It's also worth noting that many countries have separate limits that apply to young drivers, or to people who drive long-haul vehicles.
Aimee Rogers Profile
Aimee Rogers answered
The legal amount that a driver is allowed to drink before driving is four units for men, and three units for women.

This roughly works out at two pints of ordinary lager or two 175 ml glasses of wine. Alcopops are usually around 1.5 units each, and 1 measure of any spirit is usually one unit.

However, although it is possible to drive after consuming the legal amount of alcohol, it is still advised against.

Not everybody is the same, and whilst the legal limit might be ideal for some people, others may not be able to cope with the same amount of alcohol as well as the others.

This means that judgement could still be affected and accidents could easily happen. So whilst it may seem boring, the main message is to simply not drink at all.

If you do want to drink whilst you are out, then take a taxi or get a lift from somebody who doesn't drink. It is always better to be safe than sorry!

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