An adult driver who has just obtained their first driving licence may not exceed an alcohol level of...

Correct answer

0.15 milligrams of alcohol per litre of exhaled air.

The blood alcohol level is the amount of alcohol in the blood or exhaled air, expressed in grams per litre of blood (g/l) or milligrams per litre of exhaled air (mg/l). For drivers who have just obtained their first driving licence, the maximum permitted alcohol level in exhaled air is 0.15 mg/l. However, it is important to note that even below this permitted level, the effects of alcohol may still be experienced and the risk of accidents may increase. The only truly safe level is 0.0 g/l. As novice drivers may be more vulnerable to the effects of alcohol because of their lack of driving experience, a lower alcohol limit applies to them.