Youth
Driving age is the age at which a person can apply for a driver's license. Countries with the lowest driving ages (below 17) are Australia, Canada, El Salvador, Iceland, Israel, Estonia, Macedonia, Malaysia, New Zealand, Norway, the Philippines, Russia, Saudi Arabia, Slovenia, Sweden, the United Kingdom (Mainland) and United States. The Canadian province of Alberta and several U.S. states permit youth driving as low as 14. Niger has the highest minimum driving age in the world at 23. In India, driving is legal after getting a license at the age of 18.
Commercial driver's license
The minimum age to apply for a CDL is usually 21, as required by the United States Department of Transportation, although some states allow drivers who are 18 to 20 to apply for a CDL that is valid only within the driver's state of residence. A single state CDL only restricts driving of CMVs within the holder's state (not non-commercial vehicles), and automatically converts to a 50 state CDL at the age of 21.