CDL (Commercial Driver's License)
A Commercial Driver's License (CDL) is a specialized license required to operate large commercial vehicles including semi-trucks, buses, and tankers. CDL classes are A, B, and C depending on vehicle type and weight.
In Depth
CDL-A is required to drive combination vehicles (semi-trucks) over 26,001 lbs with a towed unit over 10,001 lbs. CDL-B covers single vehicles over 26,001 lbs. CDL-C covers vehicles carrying hazardous materials or 16+ passengers.
Endorsements add to CDL authority: H (hazmat), T (double/triple trailers), N (tank), P (passenger), X (combination tank + hazmat).
Usage Example
Example: 'I have a CDL-A with a hazmat endorsement, which lets me haul fuel tankers.'
Related Calculators
Related Terms
DOT Number
A USDOT number is a unique identifier issued by the FMCSA to commercial motor vehicles operating in interstate commerce. It is used to track a carrier's safety information, inspections, crashes, and audits.
FMCSA
The Federal Motor Carrier Safety Administration (FMCSA) is the U.S. government agency that regulates commercial motor vehicles. It oversees driver licensing, vehicle safety standards, Hours of Service rules, and carrier authority.
Owner-Operator
An owner-operator is a truck driver who owns and operates their own commercial truck, running freight either independently (with their own authority) or leased onto a motor carrier.
Frequently Asked Questions
How do I get a CDL?
Pass a knowledge test, skills test, and medical exam. CDL schools typically cost $3,000–$8,000 and take 3–6 weeks.