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GlossaryClass A CDLCommercial Driver's License Class A

CDL Class A

A CDL Class A is the commercial driver's license that lets you operate a combination vehicle (tractor + trailer) with a gross combined weight rating of 26,001 lbs or more, where the towed unit is over 10,000 lbs.

What you actually need to know

If you want to drive a standard tractor-trailer (semi-truck pulling a trailer), you need a Class A CDL. Class B covers straight trucks (no trailer over 10,000 lbs); Class C covers smaller commercial vehicles like passenger vans or hazmat cars.

You get a Class A by passing a knowledge test (general, air brakes, combination vehicles) and a skills test (pre-trip inspection, backing maneuvers, road test) in a Class A vehicle. Most drivers attend a CDL training school for 4–8 weeks before testing.

TruckStart is not a CDL school. We assume you already have a CDL Class A and want to become an independent owner-operator. If you're still earning your CDL, finish that step first.

Common mistakes / confusions

  • A Class A CDL itself doesn't let you operate as an "owner-operator." You also need MC authority, a USDOT number, insurance, and the rest of the business setup.
  • Endorsements (Hazmat, Tanker, Doubles/Triples) are separate from the base CDL class.
  • Some states allow non-citizens with valid work authorization (and an SSN or ITIN, depending on state) to hold a CDL. Check your state's specific rules.

Related terms

Where to go next

TruckStart is an educational tool, not a law firm, accounting firm, insurance agency, freight broker, or filing service. Always verify current requirements directly with FMCSA, your state, the IRS, and qualified professionals before making business decisions.