The **maximum permitted blood alcohol concentration** for an adult driver of a personal mobility vehicle is **0.50 grams per liter of blood**. This limit applies to any vehicle and driver not in special categories, such as novice or professional drivers, who have lower limits.

- **Blood alcohol concentration** refers to the amount of alcohol in the blood after drinking. It is measured in grams per liter of blood or milligrams per liter of exhaled air.
- For drivers who are neither novice nor professional, the permitted limit is **0.5 grams per liter of blood**. This means they can have up to that amount of alcohol in their blood without breaking the law.

- It is important to remember that, although this is the legally permitted limit, the only completely safe level for driving is **0.0**, meaning not consuming alcohol before driving.