Free Connecticut CDL Practice Tests — Your Complete Study Guide
Pass your Connecticut 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 Connecticut, you must pass three written permit tests — General Knowledge, Combination Vehicles, and Air Brakes — at the Connecticut Department of Motor Vehicles. Similar to a regular driver's license permit exam, these are timed, multiple-choice tests based on the official Connecticut CDL handbook.
All of our practice material is built from the official Connecticut 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 Connecticut
- Must be at least 18 years old for intrastate (within Connecticut) commercial driving.
- Must be at least 21 years old for interstate commerce or hazardous materials.
- Must be a Connecticut resident and provide proof of residency from two separate sources. Out-of-state CDL holders establishing CT residency must transfer within 30 days.
- Must provide proof of legal presence in the United States and Social Security Number documentation.
- Must hold a valid Connecticut driver's license.
- Must obtain a CLP by passing the General Knowledge written test (50 questions, 80% passing, $16 fee) plus applicable endorsement tests ($5 each).
- CLP requires: valid CT license, identity proof, SSN, legal presence proof, two residency proofs, completed Form R-229a, self-certification paperwork, and valid medical examiner's certificate. CLP fee: $20. CLP valid for 1 year.
- Must hold CLP for at least 14 days before taking the skills test ($30 fee).
- Effective June 16, 2025, paper medical certificates are no longer accepted — certified examiners transmit electronically through the FMCSA National Registry to CT DMV.
- Entry Level Driver Training (ELDT) is required for first-time Class A or Class B CDL, upgrades, and first-time P, S, or H endorsements. Theory component requires 80% score.
- CT revised knowledge and skills tests effective July 1, 2025 to comply with updated federal regulations (Modules 11 and 12).
- Must register with the FMCSA Drug and Alcohol Clearinghouse and maintain "not-prohibited" status.
- CT-specific endorsements include: A (Activity Vehicle) and F (Taxi, Livery, Motor Bus, Motor Coach).
- CDL fee: $70 (new or 4-year renewal). Duplicate: $30.
- CDL classes: Class A (combination vehicles 26,001+ lbs GCWR with towed vehicle over 10,000 lbs), Class B (single vehicle 26,001+ lbs GVWR), Class C (16+ passengers or hazmat under 26,001 lbs).
Official Connecticut CDL Handbook
The official Connecticut Commercial Driver's License Manual covers every topic tested on the state's CDL knowledge exam — but its dense, reference-style format makes it difficult for self-study. A more effective preparation tool is our set of General Knowledge practice tests. Our free Connecticut CDL permit practice test is structured to closely match the format and content of the official exam and is fully updated as of February 2026. Each test includes 20 questions covering critical topics such as vehicle inspection, safe driving techniques, air brakes, cargo securement, driving emergencies, hazardous conditions, and Connecticut-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 learn from every question, not just the ones you get right.
- Complete CDL regulations and Connecticut-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 Connecticut.
Federal regulations on non-domiciled CDLs are changing rapidly. The information below reflects the latest known state actions.
Connecticut DMV explicitly confirms that it issues non-domiciled CDLs: "If you are not a U.S. citizen or lawful permanent resident, you will be issued a non-domicile CDL or CLP." Non-U.S. citizens must show proof of legal presence and present a valid employment authorization document. Immigration status is verified through the federal SAVE system.
However, FMCSA’s Final Rule (published Feb 13, 2026; effective Mar 16, 2026) narrows non-domiciled CLP/CDL eligibility to H-2A, H-2B, and E-2 classifications and requires States to query SAVE; as of Mar 16, 2026 EADs are no longer accepted for non-domiciled credential issuance/transactions. States that cannot comply by the effective date must pause non-domiciled issuance until they can meet the revised standards.[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 Connecticut.
Connecticut does not currently administer a separate state-level English Language Proficiency (ELP) test for CDL applicants. However, all Connecticut CDL holders are subject to federal ELP enforcement, which took effect on June 25, 2025. Under FMCSA guidance, all roadside inspections must begin in English, and if a driver appears unable to understand or respond appropriately, the officer proceeds with a formal two-step English Proficiency Assessment — a conversational interview in English (no interpreters, translation apps, or other language facilitation tools are permitted), followed by a test on reading and interpreting standard U.S. traffic signs. Drivers who fail either step face citation and immediate out-of-service status under CVSA North American Standard Out-of-Service Criteria.