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Ohio CDL Class B to A Upgrade Study Material

Everything for upgrading a Ohio Class B CDL to Class A, in one place: Combination Vehicles, Air Brakes, Class B to A Upgrade. Each one has the official manual rewritten section by section with its diagrams, a quick review of what the test asks about, practice questions with every answer explained, and narrated audio for the drive. It settles the parts that catch people out, like how to spot a trailer skid before it gets away from you.

Ohio Class B to Class A Upgrade Study Material 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 for Ohio CDL Applicants

Ohio is a major Midwest freight hub with multiple crossing interstate corridors and a large automotive supply chain. With automotive manufacturing, steel and metals, e-commerce distribution driving much of the freight in Ohio, the Class B to Class A Upgrade material below is the part of the Ohio CDL that those employers screen for first.

The Ohio Class B to A upgrade: Combination Vehicles and Air Brakes knowledge tests at Ohio Bureau of Motor Vehicles, 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 Ohio Bureau of Motor Vehicles will schedule the test.

Where Ohio drivers use this

  • E-commerce distribution: regional and over-the-road tractor-trailer distribution runs
  • Agriculture and food processing: refrigerated produce loads to distribution centers and out of state
  • Automotive manufacturing: the tractors and straight trucks on every plant route
  • Steel and metals: dump trucks, mixers, and flatbed tractors on construction routes
  • Almost every Class A and Class B vehicle in Ohio; skip this test and your CDL carries an L restriction

Most Ohio CDL work runs the I-70, I-71, I-75 corridors and the Columbus 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 Ohio Bureau of Motor Vehicles. See the Ohio CDL classes and Ohio endorsements pages for the full licensing picture.

Common Ohio questions

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

Who should get the Ohio Class B to Class A Upgrade Study Material

Already hold a Class B and being asked to pull trailers? Moving up to Class A means passing Combination Vehicles and Air Brakes. This program covers both, plus the upgrade theory.

Topics Covered for Ohio Class B to Class A Upgrade Study Material

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.

Ohio CDL 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.

Ohio CDL 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.

Ohio Class B to Class A Upgrade Study Material

OH Class B to Class A Upgrade Study Material Includes

  • Combination Vehicles
  • Air Brakes
  • Class B to A Upgrade Theory

$39.85$37.95

You save $1.90 vs. buying the OH CDL test prep study material separately

Study Material Access Duration

120, 180, 365 days of access · No subscription

No subscription, no auto-renewal: 120 days of access included, or extend to 180 or 365 days at checkout.

Failing your Ohio CDL exam costs more than preparing.