Which of the following is true about a Regular CDL?

The designation of a Regular Commercial Driver's License (CDL) indicates the privilege to operate commercial motor vehicles. This type of license is necessary for drivers who intend to operate larger vehicles such as buses, trucks, and other specialized vehicles used for commercial purposes. Obtaining a CDL requires meeting specific regulatory standards, including passing knowledge and skills tests that ensure the individual is qualified to handle more complex driving situations associated with commercial vehicles.

The other options don't accurately reflect the nature of a Regular CDL. For instance, it is not limited to U.S. Nationals, nor is it intended for private vehicle use, as it is specifically tailored for commercial driving. Additionally, a Regular CDL is not a provisional driving permit; such a permit typically comes with restrictions and is designated for new drivers learning to drive under certain conditions.