Is this Class B to Class A Upgrade Program material specific to Michigan?

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

Where do I take the Class B to Class A Upgrade Program knowledge test in Michigan?

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

How long do I have to study the Michigan Class B to Class A Upgrade Program material?

Access lasts 120 days from purchase, which is enough to study, take the practice tests, and pass at Michigan Department of State with time to spare. Retakes in Michigan are allowed after a short wait, so a second attempt is covered too.

Michigan Class B to Class A Upgrade Program

Overview

Upgrade prep for Class B CDL holders moving to Class A, including combination vehicles, coupling, air brakes, and HOS theory.

Class B to Class A Upgrade Program for Michigan CDL Applicants

Michigan is the heart of US automotive manufacturing, driving strong demand for flatbed and just-in-time parts haulers. With automotive parts and assembly, steel and metals, agriculture and food processing driving much of the freight in Michigan, the Class B to Class A Upgrade Program material below is the part of the Michigan CDL that those employers screen for first.

The Michigan Class B to A upgrade: Combination Vehicles and Air Brakes knowledge tests at Michigan Department of State, then a Class A skills test. Since February 2022, ELDT theory and behind-the-wheel training must also be logged with an FMCSA-registered provider before Michigan Department of State will schedule the test.

Where Michigan drivers use this

Steel and metals: dump trucks, mixers, and flatbed tractors on construction routes
Almost every Class A and Class B vehicle in Michigan; skip this test and your CDL carries an L restriction
Automotive parts and assembly: just-in-time parts hauling between assembly plants and suppliers
Agriculture and food processing: refrigerated (reefer) loads of produce and food moving to distribution centers and out of state
Automotive parts and assembly: just-in-time parts loads between assembly plants and suppliers

Most Michigan CDL work runs the I-75, I-94, I-96 corridors and the Lansing 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 Michigan Department of State. See the Michigan CDL classes and Michigan endorsements pages for the full licensing picture.

Common Michigan questions

Is this Class B to Class A Upgrade Program material specific to Michigan?: Yes. The knowledge test content is federal (49 CFR 383), so the questions apply in Michigan, and this page adds Michigan details: where you test (Michigan Department of State), which Michigan industries use this license, and the Michigan corridors the examples are drawn from.
Where do I take the Class B to Class A Upgrade Program knowledge test in Michigan?: Knowledge tests are given by Michigan Department of State. Bring your Michigan driver license, proof of residency, and your medical certificate; most Michigan offices require an appointment for CDL testing.
How long do I have to study the Michigan Class B to Class A Upgrade Program material?: Access lasts 120 days from purchase, which is enough to study, take the practice tests, and pass at Michigan Department of State with time to spare. Retakes in Michigan are allowed after a short wait, so a second attempt is covered too.

When Is This Useful?

Helps drivers expand from heavy single vehicles into tractor-trailers and other combination vehicle work.

Who Is This For?

Current Class B CDL holders who need Class A authority for new job duties or equipment assignments.

Topics Covered

Combination Vehicle Dynamics

Upgrading from Class B to Class A means operating vehicles with fundamentally different handling. Off-tracking, rearward amplification, and trailer swing all require new driving habits. The Combination Vehicles written test focuses on these differences compared to single heavy vehicles.

Coupling and Uncoupling Procedure

Correctly connecting a tractor to a trailer is a critical Class A skill tested both on the written exam and during the skills test. This module covers the exact coupling sequence that examiners expect to observe during the pre-trip exercise.

Air Line Connections

Class A combination vehicles use service and emergency air lines between the tractor and trailer that Class B drivers have not typically operated. You will learn how to connect them correctly, perform pressure checks, and identify warning signs of failure.

Trailer and Coupling Inspection

Adding a trailer to your pre-trip inspection means covering the coupling area, fifth wheel, air connections, trailer brakes, and landing gear in sequence. The Class A skills test expects you to demonstrate all of these additional inspection points.

Class A Test Readiness

The Class A upgrade requires passing the Combination Vehicles written knowledge test plus completing a new skills test on a Class A vehicle. This section prepares you for the content differences, scoring criteria, and what Class A evaluators assess differently from Class B.

Class B to Class A Upgrade Program

$37.95

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What's Included:

Combination Vehicles
Air Brakes
Class B to A Upgrade Theory