For driving interstate, a CDL holder must be at least what age?

In order to drive a commercial motor vehicle across state lines, federal regulations mandate that a Commercial Driver's License (CDL) holder must be at least 21 years old. This age requirement is in place to ensure that drivers have sufficient maturity and experience to handle the responsibilities and challenges associated with interstate trucking, which often involves longer hours, more complex regulations, and higher stakes than intrastate transport.

While individuals can obtain their CDL at 18 years old, this only allows them to operate within their home state. The federal age limit of 21 years becomes crucial for those looking to engage in interstate commerce and transport goods across state borders, which is a significant aspect of the trucking industry. Thus, understanding this age requirement is vital for CDL holders who plan to work in interstate transportation.