Mississippi (MS) CDL Practice Tests
Preparing for the Mississippi CDL written exam requires more than memorizing answers — it requires understanding how commercial driving rules are applied on Mississippi roadways. This page features Mississippi CDL practice tests designed to help drivers review key knowledge areas tested by the state, including General Knowledge, Combination Vehicles, and Air Brakes.
These practice tests are intended to complement study materials found in the Mississippi CDL manual by helping drivers check their readiness before exam day. By working through realistic practice questions, Ohio CDL applicants can better identify weak areas, reinforce critical concepts, and approach the official knowledge test with greater confidence.
Mississippi (MS) CDL permit applicants can work through these five practice questions to review core exam concepts and prepare for the Commercial Learner’s Permit (CLP) knowledge test.
Question 1
Jackknifing occurs when:
Question 2
Under federal regulations, texting while driving a commercial motor vehicle is:
Question 3
Before entering a tunnel with a commercial motor vehicle, you should:
Question 4
GCWR stands for:
Question 5
Underinflated tires are dangerous mainly because they:
Mississippi CDL Practice Tests: General Knowledge, Combination Vehicle & Air Brakes
Drivers preparing for an Mississippi Commercial Driver’s License (CDL) should focus on three core CDL practice tests. These align with the written knowledge exams required in Mississippi and support the material covered in the official Mississippi CDL manual.
- General Knowledge CDL Practice Test
- Combination Vehicle CDL Practice Test
- Air Brakes CDL Practice Test
For best results, combine CDL practice tests with the Mississippi Commercial Driver License Manual and focus on the sections that match your intended license class and endorsements.
Preparing for the Mississippi CDL Exam
Commercial driver licensing standards are established at the federal level by the Federal Motor Carrier Safety Administration (FMCSA). Each state is responsible for administering CDL testing and licensing.
In Mississippi, CDL information and testing requirements are published by the Mississippi Department of Public Safety (DPS), Driver Service Bureau. The official CDL manual used for written and skills testing is:
The Mississippi CDL manual applies to all commercial license classes, including:
- Class A CDL
- Class B CDL
- Class C CDL
Mississippi CDL Eligibility Requirements
Age Requirements:
You must be at least 18 years old to operate a commercial motor vehicle within Mississippi (intrastate).
You must be at least 21 years old to operate interstate or transport hazardous materials.
Valid Mississippi Driver’s License
You must hold a valid Mississippi Class D non-commercial driver’s license before applying for a CDL.
Medical Certification
All Mississippi CDL applicants must pass a DOT physical examination conducted by a certified medical examiner listed on the National Registry.
FMCSA medical certification requirements
CDL Knowledge Tests and Endorsements
Applicants must pass written knowledge tests covering general CDL topics, air brakes (if applicable), and any endorsements required for their intended type of driving.
Common CDL endorsements include:
- Hazardous Materials (H)
- Tank Vehicles (N)
- Passenger (P)
- School Bus (S)
Entry-Level Driver Training (ELDT)
Federal Entry-Level Driver Training (ELDT) requirements apply to many Mississippi CDL applicants. ELDT includes classroom instruction and behind-the-wheel training completed through an FMCSA-registered provider.
ELDT is required for:
- First-time CDL applicants
- Drivers upgrading from Class B to Class A
- Applicants adding Hazardous Materials (H), Passenger (P), or School Bus (S) endorsements
FMCSA Training Provider Registry
Background Checks and Documentation
Certain endorsements, including Hazardous Materials, require a federal background check. Applicants must also provide documentation verifying identity, Mississippi residency, and lawful U.S. presence.
Mississippi CDL Application Process
CDL applicants in Mississippi must complete knowledge testing, obtain a Commercial Learner Permit (CLP), hold it for at least 14 days, complete any required Entry-Level Driver Training, and pass the CDL skills test before license issuance. The CLP is valid for 6 months and may be renewed once within a 2-year period. Skills tests can be taken at a DPS office or through an approved third-party tester.
Mississippi DPS CDL application and testing steps
Mississippi CDL Fees
Mississippi CDL fees are published by the Mississippi DPS. Fees vary based on license duration and testing requirements. All license and ID card fees are payable by cash, debit, or credit; personal checks are not accepted.
- Commercial Learner’s Permit (CLP): $16.00
- CDL Application Fee: $25.00
- CDL Issuance: $44.00
- Additional CDL Endorsement (each): $5.00
Third-party CDL testing locations may set their own skills test fees. Additional costs may also apply for endorsement testing or background checks, such as fingerprinting for Hazardous Materials endorsements.
CDL Practice Tests for Mississippi (MS)
Mississippi (MS) CDL Practice TestsThis page was updated on: 7/14/2026