Free South Carolina CDL Practice Tests — Your Complete Study Guide
Pass your South Carolina CDL permit exam with 80%+ on the first try
What You Need to Study
General Knowledge
The foundation of your CDL exam. Covers traffic laws, safe driving techniques, vehicle inspection procedures, cargo handling, and federal regulations every commercial driver must understand.
Combination Vehicles
Essential for driving tractor-trailers. Covers coupling and uncoupling procedures, rollover prevention, inspecting combination vehicles, and safely maneuvering with attached trailers.
Air Brakes
Required for any vehicle equipped with air brakes. Covers how air brake systems work, dual air brake systems, inspecting air brakes, and using them safely in all conditions.
Endorsement Tests
HazMat
Required for transporting hazardous materials. Covers placarding, labeling, loading procedures, emergency response, and compliance with federal hazmat regulations.
Tanker
Required for driving tank vehicles used to transport liquids or gases in bulk. Covers safe loading, unloading, and driving techniques specific to tanker operations.
Doubles & Triples
Required for pulling double or triple trailers. Covers coupling and uncoupling multiple trailers, safe driving practices, and inspection procedures for multi-trailer rigs.
Passenger
Required for operating vehicles designed to transport 16 or more passengers. Covers passenger safety, loading, emergency exits, and pre-trip inspection requirements.
What Are You Preparing For?
Select one or more options so we can show you exactly which tests you need to take.
What You Need to Study
General Knowledge
16 sections · 800 questions
The foundation of your CDL exam. Covers traffic laws, safe driving techniques, vehicle inspection procedures, cargo handling, and federal regulations every commercial driver must understand.
Combination Vehicles
9 sections · 180 questions
Essential for driving tractor-trailers. Covers coupling and uncoupling procedures, rollover prevention, inspecting combination vehicles, and safely maneuvering with attached trailers.
Air Brakes
6 sections · 150 questions
Required for any vehicle equipped with air brakes. Covers how air brake systems work, dual air brake systems, inspecting air brakes, and using them safely in all conditions.
Endorsement Tests
Additional endorsements you may need depending on the type of vehicle or cargo you plan to operate.
HazMat
9 sections · 202 questions
Required for transporting hazardous materials. Covers placarding, labeling, loading procedures, emergency response, and compliance with federal hazmat regulations.
Tanker
6 sections · 133 questions
Required for driving tank vehicles used to transport liquids or gases in bulk. Covers safe loading, unloading, and driving techniques specific to tanker operations.
Doubles & Triples
7 sections · 144 questions
Required for pulling double or triple trailers. Covers coupling and uncoupling multiple trailers, safe driving practices, and inspection procedures for multi-trailer rigs.
Passenger
6 sections · 123 questions
Required for operating vehicles designed to transport 16 or more passengers. Covers passenger safety, loading, emergency exits, and pre-trip inspection requirements.
Your Path to a Commercial Driver's License
To get a CDL, you must first study for and pass the permit exam at the DMV. After you receive your permit, you can take commercial vehicle driving classes and complete the required training. The final step is passing the official driving exam to earn your CDL. Our practice tests help you prepare for the DMV permit exam with real-style questions, and we also provide extra study materials and helpful resources to guide you through the process.
To obtain a CDL in South Carolina, you must pass three written permit tests — General Knowledge, Combination Vehicles, and Air Brakes — at the South Carolina Department of Motor Vehicles. Similar to a regular driver's license permit exam, these are timed, multiple-choice tests based on the official South Carolina CDL handbook.
All of our practice material is built from the official South Carolina CDL handbook and federal resources, and curated by professionals with over 10 years of experience in the commercial transportation industry. Studying with practice tests that mirror the real exam format is one of the most effective ways to pass on your first try.
On this page you'll find free practice tests for all three sections. For the full question bank and additional study features, download the CDL Help app.
CDL Requirements in South Carolina
State DMVState DMV49 CFR §391.11
- To obtain a Commercial Driver License (CDL) in South Carolina, you must meet the following eligibility requirements:
- Must be at least 18 years old to obtain a CDL and drive within South Carolina (intrastate).
- Must be at least 21 years old to drive outside South Carolina (interstate).
- Must be a permanent resident of South Carolina. Must hold a valid, unexpired South Carolina driver's license before applying.
- SCDMV will only issue CDLs or CLPs to U.S. citizens or lawful permanent residents ("green card" holders).
- If the type of commerce requires it, must maintain a medical examiner's certificate from a medical professional listed on FMCSA's National Registry. SCDMV will not accept a certificate expiring within 30 days or from an examiner not on the National Registry. Must complete Form DL-405A (Medical Certification Requirements) self-certifying operation type.
- CLP: Complete SCDMV Form 447-CDL. CLP is valid for one year. Must hold CLP for minimum of 14 calendar days before skills test.
- ELDT required for applicants who received CLP on or after February 7, 2022, and for Hazmat (H) endorsement applicants.
- Knowledge test: must score 80% or higher; may be taken at any SCDMV branch.
- Skills test: three-part test (vehicle inspection, basic control skills, road test) at designated SCDMV branches Monday-Friday; no testing after 4:00 p.m. If failed, $25 re-test fee.
- CDL Classes: Class A (GCWR 26,001+ lbs, towed vehicle over 10,000 lbs), Class B (single vehicle GVWR 26,001+ lbs), Class C (16+ passengers or hazmat placarding).
- Endorsements: H (Hazmat — ELDT required, TSA threat assessment $86.50 via Identogo, U.S. citizens and LPRs only), X (Hazmat + Tanker combo), P (Passenger), S (School Bus), T (Doubles/Triples), N (Tank Vehicle).
- Fees: Application $15; knowledge test $2 each; CLP $2.50; CDL (no Hazmat, 8-year) $25; CDL with Hazmat (5-year) $15; skills test re-take $25.
- CDL validity: Standard CDL (no Hazmat) valid for 8 years, expiring on holder's birthday. CDL with Hazmat valid for no more than 5 years from TSA threat assessment date.
Official South Carolina CDL Handbook
The official South Carolina CDL Manual covers every topic tested on the state's CDL knowledge exam — but it reads like a dense reference manual, not a structured study guide. A more effective way to prepare is with our General Knowledge practice tests. Our free South Carolina CDL permit practice test mirrors the format and content of the official exam and is fully up to date as of February 2026. Each practice test features 20 questions covering essential topics such as vehicle inspection, safe driving techniques, air brakes, cargo securement, driving emergencies, hazardous conditions, and South Carolina-specific commercial driving regulations. Unlike the official test, every practice question comes with a helpful hint and a detailed explanation of the correct answer — so you actually learn from every question you answer.
- Complete CDL regulations and South Carolina-specific requirements
- Safe driving techniques, vehicle inspection, and cargo handling
- All endorsement categories and testing requirements
Non-Domiciled CDL Information
Important information about non-domiciled commercial driver's licenses in South Carolina.
Federal regulations on non-domiciled CDLs are changing rapidly. The information below reflects the latest known state actions.
South Carolina has taken a strict stance on non-domiciled CDLs. In response to FMCSA's interim final rule, the SCDMV announced that effective September 29, 2025, it will only issue CDLs or CLPs to U.S. citizens or lawful permanent residents ("green card" holders). This means South Carolina does not issue non-domiciled CDLs to foreign nationals with temporary lawful presence (e.g., visa holders). Current CDL holders are not affected — the change applies only to future issuance and renewals. This does not affect non-commercial driver's licenses. Most components of the federal rule were already in place in South Carolina prior to the announcement, including eligibility verification through federal databases and requiring noncitizens renewing a CDL to appear in person. This aligns with the FMCSA final rule published on February 13, 2026, which limits non-domiciled CLP and CDL eligibility to H-2A, H-2B, and E-2 visa holders.[FMCSA Final Rule]
English Language Proficiency (ELP)
Federal ELP enforcement applies to all CDL holders nationwide.
Federal ELP enforcement applies to all CDL holders nationwide. Here is how it is enforced in South Carolina.
South Carolina does not currently administer a separate state-level English Language Proficiency (ELP) test for CDL applicants. However, all South Carolina CDL holders are subject to federal ELP enforcement, which took effect on June 25, 2025. Under this enforcement, roadside inspectors conduct a two-step assessment: first, a conversational interview in English — no interpreters or translation tools are permitted — to evaluate whether the driver can communicate sufficiently in English; second, the driver must demonstrate the ability to read and interpret standard U.S. traffic signs. Drivers who fail either step of the assessment are placed out of service under CVSA guidelines. South Carolina CDL applicants should be prepared to demonstrate English proficiency during any roadside inspection or compliance review.