Mississippi Class B to A Upgrade Theory
A focused guide for Mississippi Class B CDL holders upgrading to Class A: exactly what is new, which knowledge and skills tests you will take, and the combination vehicle material to study for them.
Mississippi Class B to A Upgrade Theory Overview
Theory review for Class B CDL holders upgrading to Class A, covering combination vehicle operation, coupling, and HOS.
Class B to A Upgrade Theory for Mississippi CDL Applicants
Mississippi supports growing automotive and food processing freight along key Southeast freight corridors. With automotive manufacturing, poultry and food processing, shipbuilding logistics driving much of the freight in Mississippi, the Class B to A Upgrade Theory material below is the part of the Mississippi CDL that those employers screen for first.
Upgrading from Class B to Class A in Mississippi means passing the Combination Vehicles knowledge test at Mississippi Department of Public Safety (and Air Brakes if not already held), then a skills test in a Class A combination. This is the theory part.
Where Mississippi drivers use this
- Poultry and food processing: livestock trailers and refrigerated meat loads
- Shipbuilding logistics: regional and over-the-road tractor-trailer distribution runs
- Timber and paper: flatbed and step-deck loads of steel, lumber, and building materials
- Automotive manufacturing: just-in-time parts hauling between assembly plants and suppliers
- Poultry and food processing: refrigerated (reefer) loads of produce and food moving to distribution centers and out of state
Most Mississippi CDL work runs the I-20, I-55, I-59 corridors and the Jackson 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 Mississippi Department of Public Safety. See the Mississippi CDL classes and Mississippi endorsements pages for the full licensing picture.
Common Mississippi questions
- Is this Class B to A Upgrade Theory material specific to Mississippi?
- Yes. The knowledge test content is federal (49 CFR 383), so the questions apply in Mississippi, and this page adds Mississippi details: where you test (Mississippi Department of Public Safety), which Mississippi industries use this license, and the Mississippi corridors the examples are drawn from.
- Where do I take the Class B to A Upgrade Theory knowledge test in Mississippi?
- Knowledge tests are given by Mississippi Department of Public Safety. Bring your Mississippi driver license, proof of residency, and your medical certificate; most Mississippi offices require an appointment for CDL testing.
- How long do I have to study the Mississippi 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 Mississippi Department of Public Safety with time to spare. Retakes in Mississippi are allowed after a short wait, so a second attempt is covered too.
Who should get the Mississippi Class B to A Upgrade Theory
Current Class B CDL holders upgrading to Class A.
Topics Covered for Mississippi Class B to A Upgrade Theory
Moving from Class B to Class A means operating vehicles with very different handling: longer wheelbase, trailer swing, and off-tracking on turns. This module explains the physics behind combination vehicle behavior as tested on the Combination Vehicles knowledge exam.
Proper coupling procedure is a primary topic on the Combination Vehicles written test and a required demonstration during the Class A skills test. You will learn the sequence that must be followed correctly to pass both the written and practical portions.
Connecting and managing the service and emergency air lines between tractor and trailer is a skill Class B drivers do not typically practice. The exam tests both the correct connection procedure and what happens when those connections fail at speed.
Class A drivers commonly operate in interstate commerce, where federal Hours of Service rules govern maximum drive time, required rest periods, and logging requirements. This section covers the limits, exceptions, and logging concepts that appear on the CDL knowledge exam.
Mississippi Class B to A Upgrade Theory
$16.95
The theory course is not available to buy yet.
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 Mississippi CDL exam costs more than preparing.
Mississippi Class B to A Upgrade Included in these study material sets
Get Class B to A Upgrade plus more, for less than buying separately.