At what breath alcohol concentration level is a driver subject to imprisonment?

At what breath alcohol concentration level is a driver subject to imprisonment?

1. A breath alcohol concentration of 0.25 milligrams per liter of air or higher.
2. A breath alcohol concentration of 0.40 milligrams per liter of air or higher.
3. A breath alcohol concentration of 0.50 milligrams per liter of air or higher.

Correct answer

A breath alcohol concentration of 0.40 milligrams per liter of air or higher.

This is the correct answer for the Cambodian driving theory test. Questions are drawn from the official Ministry of Public Works and Transport sign library and road rules.