Colorado CDL Practice Test 2025 - Free Commercial Driver’s License Practice Questions and Study Guide

To hold a Colorado Commercial Driver's License (CDL), the minimum age requirement is indeed 18 years old. This age threshold allows individuals to drive commercial vehicles within intrastate limits, meaning they can operate trucks and other vehicles that do not cross state lines.

However, it is important to note that while 18 years old is the minimum age for a CDL, drivers must be at least 21 years old to operate a commercial vehicle across state lines or transport hazardous materials. This distinction is crucial, as it aligns with federal regulations that establish age requirements for different categories of commercial driving.

The age requirement ensures that drivers have sufficient maturity and experience to handle the complexities and responsibilities associated with operating larger vehicles safely. Therefore, understanding these age regulations is essential for anyone seeking a CDL in Colorado, as they influence eligibility, training, and the scope of driving rights associated with the license.