Free Wyoming CDL Practice Tests 2026

• Test Format: Computer-based at Wyoming Driver Exam Stations
• General Knowledge Test: 50 questions, need 80% to pass
• Permit Validity: 180 days (6 months)
• Waiting Period: 14 days before skills test
• Languages: English only
• CLP Fee: $45
• Skills Test Fee: $85 (appointment required)
• CDL License Fee: $55
• CDL Validity: 4 years
• Written Tests: Free of charge
• Endorsement Tests: Separate tests required for various endorsements (Hazmat, Tank, etc.)
• Retesting: May retake failed tests the next business day (cannot take same version twice in one day)

The Wyoming CDL knowledge test is a comprehensive examination of your knowledge of commercial driving regulations and safety rules. You must pass this test to get a Commercial Learner's Permit (CLP) which is required before you can take the skills test for a full CDL. The test covers vehicle operation, safety regulations, traffic laws and proper operating procedures. It's taken electronically at Driver Exam Stations throughout Wyoming. Questions include federal regulations and Wyoming-specific rules so you have the knowledge to drive commercial vehicles safely in Wyoming and across state lines if applicable.

You need to take the test if you're:

• Getting your first CLP
• Adding a new endorsement
• Upgrading your CDL class (from Class B to Class A for example)
• Reinstating an expired CDL (expired for two years or longer)
• Transferring a CDL from another state with new endorsements
• Removing an air brake restriction

All applicants must take the general knowledge test plus additional tests for specific endorsements like Passenger (P), School Bus (S), Tank Vehicles (N), Hazardous Materials (H) or Doubles/Triples (T). Each endorsement has its own test for that specific vehicle or cargo type.

The test makes sure commercial drivers have the right knowledge to operate commercial vehicles safely. It checks your understanding of regulations, safety practices, technical knowledge and emergency procedures. This helps maintain safety standards and reduces accident risks on public roads. Commercial vehicles can cause a lot of damage in accidents because of their size and weight so proper knowledge and training is essential before operating these vehicles. The knowledge test is the first step in making sure you're ready for the responsibility of commercial driving.

The test follows Federal Motor Carrier Safety Administration standards with Wyoming-specific regulations included. This ensures national consistency in commercial driver qualifications while addressing state-specific requirements. Topics covered include general driving skills, air brake operations, combination vehicles and specific endorsements. This means your Wyoming CDL will be recognized throughout the United States so you can operate commercial vehicles across state lines (as long as you meet age and other requirements for interstate commerce).

• General Knowledge: 50 questions
• Air Brakes: 25 questions
• Combination Vehicles: 20 questions
• Passenger Endorsement: 20 questions
• School Bus Endorsement: 20 questions
• Hazmat Endorsement: 30 questions
• Tank Vehicles Endorsement: 20 questions
• Doubles/Triples Endorsement: 20 questions

The questions are multiple-choice with 3 or 4 possible answers for each question. The tests thoroughly test your knowledge of safety procedures, regulations and technical knowledge of commercial vehicles.

Sample question: What documents must you have with you whenever you drive a commercial vehicle?

• Valid CDL and medical examiner's certificate only
• Valid CDL, vehicle registration and insurance
• Valid CDL, medical examiner's certificate and shipping papers if applicable
• Valid CDL and written emergency procedures only

Answer: C. Valid CDL, medical examiner's certificate and shipping papers if applicable

You must answer 80% of questions correctly on each test:

• General Knowledge: 40/50
• Air Brakes: 20/25
• Combination Vehicles: 16/20
• Passenger Endorsement: 16/20
• School Bus Endorsement: 16/20
• Hazmat Endorsement: 24/30
• Tank Vehicles: 16/20
• Doubles/Triples: 16/20

Each test is scored separately and you must pass each one individually. If you fail one test but pass others, you'll only need to retest the failed test.

The test is only in English. Federal regulations require commercial drivers to read and speak English sufficiently to understand traffic signs, communicate with officials, complete records and understand shipping documents. This ensures all commercial drivers can safely navigate roadways, communicate with law enforcement and emergency services and properly handle documentation. There are no exceptions to this language requirement for CDL testing in Wyoming.

No. You cannot use notes, electronic devices, reference materials or calculators during the test. Testing areas are monitored and using prohibited materials will result in test failure. All personal items must be stored in a designated area during testing. This includes:

• Cell phones and electronic devices
• Notes or cheat sheets
• Commercial Driver License manuals
• Reference materials of any kind
• Calculators (unless specifically authorized for certain questions)

Using prohibited materials during testing could result in immediate disqualification and may affect your ability to test again in the future.

For the General Knowledge test you have one hour to complete the 50 questions. Most endorsement tests take 30-45 minutes each. Plan accordingly if taking multiple tests in one visit. The Wyoming DOT provides sufficient time to complete the tests without rushing. If you have documented learning disabilities or other special needs, accommodations may be available with proper documentation.

Sample question: When driving on steep downgrades in Wyoming's mountains, which of these is the safest practice?

• Use a higher gear than you would use to climb the same hill
• Pump the brakes continuously to maintain a safe speed
• Use the proper gear and engine braking before starting down the grade
• Disconnect the steering axle brakes to prevent jackknifing

Answer: C. Use the proper gear and engine braking before starting down the grade

• General Knowledge (required for all CDLs)
• Air Brakes (for vehicles with air brakes)
• Combination Vehicles (for Class A licenses)
• Passenger (P) Endorsement (for buses)
• School Bus (S) Endorsement
• Doubles/Triples (T) Endorsement
• Tank Vehicle (N) Endorsement
• Hazmat (H) Endorsement

Each test covers specific knowledge for that class of vehicle or type of operation. You only need to take the tests relevant to the type of commercial driving you plan to do.

General Knowledge: Vehicle inspection procedures, basic control, shifting gears, space management, night driving, adverse weather conditions, emergency procedures, cargo handling, accident procedures, fires, fatigue awareness and basic hazardous materials regulations.

Air Brakes: System components and function, dual air brake systems, inspecting air brakes, proper use in various conditions, emergency stops, brake system failures and brake lag/fade.

Combination Vehicles: Coupling and uncoupling procedures, inspection points, handling characteristics, rollover prevention, jackknife avoidance, turning techniques and backing procedures for combination vehicles.

Passenger (P): Passenger loading and unloading procedures, proper use of emergency exits, passenger communication, accessibility requirements, dealing with disruptive passengers and railroad crossing requirements for passenger vehicles.

School Bus (S): Student loading and unloading procedures, emergency evacuation protocols, operating around schools, railroad crossing procedures, student management, danger zones around the bus and special equipment.

Doubles/Triples (T): Coupling and uncoupling multiple trailers, handling characteristics during various maneuvers, inspection procedures, identifying and correcting handling problems and operating in adverse conditions.

Tank Vehicle (N): Liquid surge and weight distribution effects on handling, baffled versus non-baffled tanks, loading/unloading procedures and special braking techniques for partially full tanks.

Hazmat (H): Classification and identification of hazardous materials, proper documentation, loading/unloading procedures, driving rules, emergency response procedures and security awareness.

• Study all relevant sections of the Wyoming CDL Manual for your license class and endorsements
• Take our free practice tests
• Create a study schedule over several weeks rather than cramming
• Make flashcards for difficult concepts and technical terms
• Focus extra time on challenging topics (air brakes, hazmat)
• Review pre-trip inspection procedures thoroughly
• Pay attention to Wyoming-specific regulations and requirements
• Study vehicle systems and components until you understand how they work
• Familiarize yourself with all required documentation and procedures

The key to success is consistent study over time rather than last minute cramming. Many applicants underestimate the technical knowledge required especially for specialized endorsements.

Yes! Our free Wyoming practice tests will help you:

• Identify knowledge gaps in your understanding
• Build confidence through repeated practice
• Simulate the actual test environment and format
• Track your progress as you improve
• Understand explanations for both correct and incorrect answers
• Get familiar with the types of questions asked on the actual test

Our practice tests cover all CDL test categories and are updated regularly to reflect current testing standards. Using practice tests has been shown to increase first-attempt pass rates.

• Start studying at least 2-3 weeks before your test date
• Understand concepts rather than simply memorizing answers
• Take our practice tests to identify and focus on weak areas
• Get enough rest the night before your test
• Eat a good meal before testing to maintain concentration
• Read questions completely before selecting answers
• Look for keywords like "always," "never," or "except" that can change a question's meaning
• Choose safety-oriented answers when unsure
• Review all answers before submitting if the testing system allows
• Stay calm and focused throughout the test

Sample question: When encountering strong crosswinds on I-80 near Laramie, you should:

• Maintain your normal speed to pass through the windy area quickly
• Grip the steering wheel firmly and slow down
• Pull off at the next exit and wait until the wind dies down
• Draft behind large vehicles to block the wind

Answer: B. Grip the steering wheel firmly and slow down

Our practice tests cover the same topics and format as the actual test, though specific questions differ. We design our questions to reflect the style, difficulty level and content of the actual Wyoming CDL knowledge test. The practice tests help you become familiar with:

• Question formats and wording styles
• Content coverage and depth
• Time management during testing
• Critical thinking skills needed for test success

Focus on understanding concepts rather than memorizing specific answers, as the actual test draws from a large question bank and each test is unique.

At designated Wyoming Driver Exam Stations that offer commercial licensing services. Not all locations provide CDL testing, so check the Wyoming DOT website or call ahead to confirm.

Major CDL testing locations in Wyoming include:

• Casper
• Cheyenne
• Cody
• Evanston
• Gillette
• Rawlins
• Riverton
• Rock Springs
• Sheridan
• Afton (seasonal)

For CDL skills tests specifically, these are only conducted at WYDOT locations listed above. Wyoming third-party examiners are only allowed to administer skills tests to their employees, volunteers, or students and cannot charge a fee for the test administration.

Yes, appointments are recommended. Schedule through:

• The Wyoming DOT website
• Calling (307) 777-4800

Some locations may accept walk-ins for CDL knowledge testing, but wait times can be very long, and you may not be able to test that day if capacity is reached. Scheduling an appointment ensures you'll be tested at your preferred time and location.

No. All CDL knowledge tests must be taken in person at authorized Driver Exam Stations to ensure security, identity verification, and test integrity. This is a federal requirement that applies to all states, not just Wyoming. In-person testing prevents cheating and ensures the person receiving the CDL is the one who demonstrated the knowledge.

Required documents:

• Valid Wyoming Class D driver's license
• Social Security card/number (can be verified with Social Security card, W-2 form, or financial/banking statement)
• Proof of citizenship/legal residency (state-certified birth certificate, valid U.S. passport, or immigration documents with photo and signature)
• Proof of Wyoming residency (two documents showing your Wyoming address such as utility bill, rental agreement, or Wyoming vehicle registration)
• Current DOT Medical Certificate (Form MCSA-5876) from a National Registered Certified Examiner
• Completed CDL application
• Payment for applicable fees (check, money order, cash, or credit/debit card at select locations with additional fee)
• For Hazardous Materials: Additional identification documents for security threat assessment

Other:

• Reading glasses if needed
• Appointment confirmation
• Knowledge of your medical history for medical certification

All documents must be original or certified copies. Photocopies are not accepted. First-time applicants must provide a state-certified birth certificate and a state-issued photo identification card/out-of-state driver license. If you're unsure about document requirements, call the Wyoming DOT Call Center at (307) 777-4800.

Get there 15-20 minutes early to allow time for:

• Document verification
• Application processing
• Fee payment
• Getting settled before the test begins

If you're late, you may have to reschedule. First-time applicants should arrive 30 minutes early to allow time for paperwork processing. Traffic and parking at Driver Exam Stations can be unpredictable, so plan accordingly.

You'll receive a Commercial Learner's Permit (CLP) valid for 180 days with these conditions:

• Must wait at least 14 days before taking the skills test
• Can only drive with a qualified CDL holder in the passenger seat who has a license valid for the type of vehicle being operated
• No passengers except supervisors, trainees, or examiners
• No hazardous materials transport
• Other restrictions based on vehicle type/endorsements

The endorsements you passed tests for will be on your CLP. You must provide your own commercial vehicle for the skills test that matches the class of license you're applying for.

Practice driving commercial vehicles while supervised before taking your skills test. This practice time is crucial to develop the skills needed to pass the behind-the-wheel test. Remember you must always have a qualified CDL holder (with proper class and endorsements) in the passenger seat when operating a commercial vehicle with your CLP.

Written test scores are valid for 2 years. However, your CLP is only valid for 180 days. The driver must hold that permit for at least 14 days before taking the skills test. If your CLP expires before you take the skills test, you'll need to renew it but you won't need to retake knowledge tests if they are still within the 2-year validity period. This ensures your knowledge is current when you get your full CDL. For Hazmat endorsements, you'll need to retake the knowledge test if your driver history record doesn't indicate that the test has been passed within the previous two years.

If you fail:

• Wait until the next business day to retest
• Only retest the sections you failed
• Applicants who fail one version of a written test may take another version again the next day
• Each version of the test cannot be taken more than once in the same day
• Use our practice tests to focus on weak areas
• Review incorrect answers to understand why they were wrong
• Consider studying with different methods if you're struggling with particular topics

Written tests are free of charge. There's no limit to how many times you can retest, but repeated failures may mean you need more preparation.

Sample question: In Wyoming, a CDL with a Hazardous Materials endorsement requires:

• Transportation Security Administration (TSA) background check and ELDT training
• At least 5 years of driving experience
• Specialized vehicle with double tanks and hazmat signs
• Accompanying escort vehicle when transporting any hazardous materials

Answer: A. Transportation Security Administration (TSA) background check and ELDT training

After holding your CLP for at least 14 days:

• Contact your local Driver Exam Station or call (307) 777-4800
• Make sure your CLP is valid and medical certificate is current
• Arrange for a test vehicle that matches your CDL class and is representative of the type of vehicle you plan to operate
• The vehicle must be driven to the test site by a person who holds a valid driver's license for the class and type of vehicle used for testing
• Pay the skills test fee ($85)
• Choose a date and time from available slots
• If you need to cancel, do so at least 24 hours before your appointment or you'll lose your testing fee

Skills tests are conducted at the following WYDOT locations: Casper, Cheyenne, Cody, Evanston, Gillette, Rawlins, Riverton, Rock Springs, Sheridan, and Afton (seasonally). The Wyoming DOT does not provide vehicles for the skills testing process.

The skills test consists of three parts:

• Pre-trip inspection (full walk-around of the vehicle where you will point out vehicle components and explain what is being checked)
• Basic vehicle control skills test
• On-road driving test

If the vehicle is a tank vehicle, you MUST have an N endorsement on your CLP. If a tank vehicle previously contained hazardous materials, you MUST have a letter stating the tank has been purged of all residue. Skills tests will not be conducted in loaded commercial vehicles (simulated weight is the only thing allowed in trailers), and placarded vehicles are not allowed for testing.