Farm Labor Contractor Practice Test

To obtain a commercial driver's license (CDL) in the United States, the minimum age requirement is 18 years old. At this age, individuals are eligible to drive within their state or for intrastate commerce, which allows them to operate commercial vehicles within their home state. However, it's important to note that while one can obtain a CDL at 18, they cannot operate a commercial vehicle across state lines (interstate) until they reach 21 years of age. This distinction underlines the reason that 18 years old is the correct minimum age for obtaining a CDL, as it aligns with regulations that govern commercial driving and licensing.

Choosing an age lower than 18, such as 16, would not comply with federal regulations, which are designed to ensure that drivers have reached a level of maturity and responsibility necessary for operating larger vehicles safely. On the higher end, 21 and 25 years old exceed the minimum requirement, as it is not necessary to be that age to obtain a CDL, although some companies may set their own age-related hiring policies.