Connecticut Class B to A Upgrade Theory

Class B to A Upgrade Theory for Connecticut CDL Applicants

Connecticut anchors the Northeast freight network with key interstate connections between New York and Boston. With aerospace manufacturing, pharmaceutical distribution, financial services supply chain driving much of the freight in Connecticut, the Class B to A Upgrade Theory material below is the part of the Connecticut CDL that those employers screen for first.

Upgrading from Class B to Class A in Connecticut means passing the Combination Vehicles knowledge test at Connecticut Department of Motor Vehicles (and Air Brakes if not already held), then a skills test in a Class A combination. This is the theory part.

Where Connecticut drivers use this

• Aerospace manufacturing: oversize aircraft sections and aerospace components on specialized flatbed and step-deck trailers
• Financial services supply chain: regional and over-the-road tractor-trailer distribution runs
• Port and marine freight: container drayage between the ports, rail ramps, and warehouses
• Required for any Class A CDL issued in Connecticut
• Pharmaceutical distribution: regional and over-the-road distribution runs for grocery, retail, and e-commerce freight

Most Connecticut CDL work runs the I-91, I-95, I-84 corridors and the Hartford area, so the examples in the practice questions lean on the vehicles and loads you will see there.

Testing, appointments, and fees are handled by Connecticut Department of Motor Vehicles. See the Connecticut CDL classes and Connecticut endorsements pages for the full licensing picture.

Common Connecticut questions

Is this Class B to A Upgrade Theory material specific to Connecticut?

Yes. The knowledge test content is federal (49 CFR 383), so the questions apply in Connecticut, and this page adds Connecticut details: where you test (Connecticut Department of Motor Vehicles), which Connecticut industries use this license, and the Connecticut corridors the examples are drawn from.

Where do I take the Class B to A Upgrade Theory knowledge test in Connecticut?

Knowledge tests are given by Connecticut Department of Motor Vehicles. Bring your Connecticut driver license, proof of residency, and your medical certificate; most Connecticut offices require an appointment for CDL testing.

How long do I have to study the Connecticut Class B to A Upgrade Theory material?

Access lasts 120 days from purchase, and you can take 180 or 365 days instead at checkout. That is enough to study, take the practice tests, and pass at Connecticut Department of Motor Vehicles with time to spare. Retakes in Connecticut are allowed after a short wait, so a second attempt is covered too.