CLP Practice Test
Updated October 2026Facts verified Oct 29, 2026 against U.S. Department of Transportation, Federal Motor Carrier Safety Administration (FMCSA), through 49 CFR Part 383. State d
The CLP test is administered by state DMV offices and covers General Knowledge, Air Brakes, and Combination Vehicles. Passing this CLP license test allows you to begin supervised driving training. Try our DMV practice test. Practice with the free Commercial Learner's Permit practice test on PracticeTestGeeks (7 questions with answer explanations).
If you are searching for a CLP practice test free online, start with the free questions on this page: every answer comes with an explanation, and the study notes below cover the CLP exam topics in order.
CLP Practice Test Questions
Prepare for the CLP - Commercial Learner's Permit exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
CLP - Commercial Learner's Permit Air Brak...
CLP Questions and Answers on - Commercial Learner's Permit Air Brake Systems Questions and Answers. Free CLP practice for exam readiness.
CLP - Commercial Learner's Permit Basic Ve...
CLP Mock Test covering - Commercial Learner's Permit Basic Vehicle Control Questions and Answers. Online CLP Test practice with instant feedback.
CLP - Commercial Learner's Permit CDL Rule...
Free CLP Quiz on - Commercial Learner's Permit CDL Rules and Regulations Questions and Answers. CLP Exam prep questions with detailed explanations.
CLP - Commercial Learner's Permit Combinat...
CLP Practice Questions for - Commercial Learner's Permit Combination Vehicle Operations Questions and Answers. Build confidence for your CLP certification exam.
CLP - Commercial Learner's Permit General ...
CLP Test Online for - Commercial Learner's Permit General Knowledge Core Concepts Questions and Answers. Free practice with instant results and feedback.
CLP - Commercial Learner's Permit Managing...
CLP Study Material on - Commercial Learner's Permit Managing Space and Speed Questions and Answers. Prepare effectively with real exam-style questions.
CLP - Commercial Learner's Permit Pre-Trip...
Free CLP Test covering - Commercial Learner's Permit Pre-Trip Vehicle Inspection Questions and Answers. Practice and track your CLP exam readiness.
CLP - Commercial Learner's Permit Transpor...
CLP Exam Questions covering - Commercial Learner's Permit Transporting Cargo Safely Questions and Answers. Master CLP Test concepts for certification prep.
CLP Driving in Adverse Conditions
Free CLP Practice Test featuring Driving in Adverse Conditions. Improve your CLP Exam score with mock test prep.
CLP Hazardous Materials Transportation
CLP Questions and Answers on Hazardous Materials Transportation. Free CLP practice for exam readiness.
CLP Hours of Service Regulations
CLP Mock Test covering Hours of Service Regulations. Online CLP Test practice with instant feedback.
CLP Restrictions and Limitations
CLP Test Online for Restrictions and Limitations. Free practice with instant results and feedback.
- To pass each knowledge test for the Commercial Learner's Permit (CLP), a driver applicant must correctly answer at least 80 percent of the questions.[1]
- A Commercial Learner's Permit holder is not eligible to take the CDL skills test in the first 14 days after the permit is first issued.[2]
- A Commercial Learner's Permit is valid for no more than one year from its initial date of issuance unless the holder retakes the general and endorsement knowledge tests.[2]
- A Commercial Learner's Permit issued for less than one year may be renewed, provided it is not valid for more than one year from the date of initial issuance.[2]
- FMCSA says a CLP holder must possess the permit for 14 days and complete applicable entry-level driver training to be eligible for the CDL skills test.[3]
Numbers in brackets link to the official sources listed under Sources & last verified. Dates that have passed are removed automatically.
CLP Exam at a Glance
| Item | Detail | Source · Verified |
|---|---|---|
| Passing score | At least 80% correct on each knowledge test[1] | ecfr.gov · Oct 25, 2026 |
| Retake policy | No skills test in the first 14 days after CLP issuance[2] | ecfr.gov · Oct 25, 2026 |
| Validity | Up to 1 year from initial issuance[2] | ecfr.gov · Oct 25, 2026 |
| Renewal | Renewable, but never past 1 year from initial issue[2] | ecfr.gov · Oct 25, 2026 |
| Eligibility | 14-day permit hold plus entry-level driver training before the skills test[3] | U.S. Federal Motor Carrier Safety Administration (FMCSA), through the state driver licensing agencies that issue the per · Oct 26, 2026 |
What changed for CLP in 2026
Free Commercial Learner's Permit Study Tools
Interactive Commercial Learner's Permit resources on PracticeTestGeeks, free to start:
- Commercial Learner's Permit flashcards — review key terms and concepts card by card
- Commercial Learner's Permit study guide — topic-by-topic overview of what the exam covers
- Commercial Learner's Permit cheat sheet — one-page printable summary for last-minute review
According to U.S. Federal Motor Carrier Safety Administration (FMCSA), through the state driver licensing agencies that issue the per, “To achieve a passing score on each of the knowledge tests, a driver applicant must correctly answer at least 80 percent of the questions.”[1]
CLP content outline and where to practise each area
The content areas below are copied from the official CLP content outline published by U.S. Federal Motor Carrier Safety Administration (FMCSA), through the state driver licensing agencies that issue the per. The right-hand column shows which of our practice sets covers it.
| Official content area | Practice on this site |
|---|---|
| Backing[4] | CLP Basic Vehicle Control Practise safe backing habits, such as checking the path first, backing slowly and toward the driver's side, and using a helper when you can. |
| Basic control[4] | CLP - Commercial Learner's Permit Basic Ve... Review how to accelerate, steer and stop smoothly in a heavy vehicle without losing traction or control. |
| CMV safety control systems[4] | CLP Air Brake Systems Learn what each gauge, warning light and brake-system indicator tells you and what to do when one shows a problem. |
| Communication[4] | CLP General Knowledge Core Concepts Practise signalling your intentions early, using lights and horn correctly, and placing warning devices after a stop on the roadside. |
| Extreme driving conditions[4] | CLP Driving in Adverse Conditions Work through questions on driving in ice, snow, heavy rain, strong wind and very hot weather, and how each one changes stopping and traction. |
| Night operation[4] | CLP Driving in Adverse Conditions Review headlight use, glare, driver fatigue and why you need to slow down when you can see less. |
| Safe operations regulations[4] | CLP CDL Rules and Regulations Study the rules on permits, disqualifications, hours of service and cargo securement that apply to commercial drivers. |
| Safe vehicle control systems[4] | CLP Pre-Trip Vehicle Inspection Practise what to check on brakes, steering, suspension, tires and lights during an inspection, and which defects mean the vehicle must not be driven. |
| Shifting[4] | CLP Basic Vehicle Control Review when and how to shift gears, including picking a low gear before a downgrade and not shifting partway through a hazard. |
| Space management[4] | CLP Managing Space and Speed Practise keeping enough space ahead, behind, beside, above and below the vehicle, including when you turn and merge. |
| Speed management[4] | CLP - Commercial Learner's Permit Managing... Learn how weight, road surface, curves and how far you can see should set your speed and stopping distance. |
| Visual search[4] | CLP - Commercial Learner's Permit General ... Practise scanning well ahead, checking mirrors regularly and spotting hazards early enough to react. |
Worked examples: how to reason through CLP questions
These are practice questions written for this site, not questions from the real exam. Each explanation shows why the right answer is right and why the others are wrong.
Example 1
Question: What is the minimum age to obtain a CLP for interstate commerce in the United States?
- 16 years old
- 17 years old
- 18 years old
- 21 years old
Answer: D. 21 years old
Explanation:
D, 21 years old, is correct. To drive a commercial motor vehicle in interstate commerce (across state lines), a driver must be at least 21. A CLP for interstate driving follows the same rule, because it permits the same kind of driving under supervision.
A (16) and B (17) are wrong because both are below any minimum age for commercial driving. C (18) is the trap. Many states let 18-year-olds hold a CLP or CDL for driving that stays within the state, so the number looks familiar, but it doesn't qualify a driver for interstate commerce.
Rule to remember: keep interstate and intrastate separate in your head. The interstate age rule is federal. The intrastate rules are set by each state.
Example 2
Question: An applicant passes the CLP knowledge tests but fails the medical examination. What happens next?
- CLP is issued with a medical waiver automatically
- The knowledge test results are voided and must be retaken
- The CLP cannot be issued until the applicant meets medical standards
- The applicant may operate CMVs with a supervisor despite failing the medical exam
Answer: C. The CLP cannot be issued until the applicant meets medical standards
Explanation:
C is correct. A CLP can't be issued until the applicant meets the medical standards. Most commercial drivers need a valid medical examiner's certificate, and passing the knowledge tests doesn't replace it.
A is wrong because waivers and exemptions are never automatic. They require a separate application and approval. B is wrong because failing the medical exam doesn't cancel passed knowledge tests. The permit is simply held back until the medical requirement is met. D is wrong because a supervising CDL holder doesn't make up for a failed medical exam. Without the permit, the applicant isn't allowed to drive the vehicle at all.
Rule to remember: the knowledge tests and the medical certification are separate requirements, and you need both before the permit is issued.
Example 3
Question: When hauling a load that is 14 feet wide, what is required?
- A pilot car only
- Special permits and possibly a pilot car or escort
- Only a slow-moving vehicle sign
- Additional axles on the trailer
Answer: B. Special permits and possibly a pilot car or escort
Explanation:
B is correct. A load 14 feet wide is well over the normal legal width, so it counts as oversize. Oversize loads need special permits, and the permit or state rules may also require a pilot car or escort.
A is wrong because a pilot car on its own isn't enough. The permit comes first, and the escort is only a possible condition of it. C is wrong because a slow-moving vehicle sign is meant for farm and other slow equipment and doesn't make an oversize load legal. D is wrong because adding axles deals with weight, not width.
Rule to remember: for oversize or overweight loads, think permit first. Escorts, signs, travel hours and routes are then set by the permit and the state.
How to use these practice tests
Start with the official manual. Get your state's CDL manual from the licensing agency. Read the general knowledge section, then the sections for any endorsement you plan to add, such as air brakes or combination vehicles. These sections are what the tests are built on.
Then practise by topic. After each section, do the matching set here. Use General Knowledge Core Concepts after the general section, Air Brake Systems if you need the air brake test, and Combination Vehicle Operations if you plan to drive a combination vehicle. For every question you get wrong, find the rule in the manual and write it down in your own words.
Cover the permit rules separately. Do Eligibility Requirements, Restrictions and Limitations and Hours of Service. These questions test exact rules, not driving judgment.
Check yourself against the pass mark. Retake your weakest sets without notes. Book the real test when you score well above 80 percent on every set, not just on average.
Plan beyond the permit. Remember the 14-day hold before the skills test, and line up your entry-level driver training early.
CLP Exam Flashcards
Click to flip and test your knowledge
🩺What is the medical requirement for a CLP?
You must possess a valid DOT medical card issued by a certified medical examiner to obtain your CLP.
START CLP PRACTICE TEST🪪How long is a CLP valid?
A Commercial Learner's Permit is typically valid for 180 days and can be renewed once for another 180 days.
GET CLP EXAM PREP🚚What is the "P" endorsement?
The P endorsement authorizes a driver to operate a vehicle designed to transport passengers.
REVIEW CLP QUESTIONS🛑What is the minimum age for interstate CLP?
You must be at least 21 years old to operate a commercial motor vehicle in interstate commerce.
TRY CLP MOCK EXAM🌬️What does the air brakes test cover?
It tests knowledge of air brake system components, usage, and safety checks required for vehicles with air brakes.
ACCESS CLP STUDY GUIDE🚛Can a CLP holder drive alone?
No, a CLP holder must always be accompanied by a valid CDL holder in the front passenger seat.
PRACTICE CLP TEST NOWCLP Exam Study Guide
This CLP study guide breaks down essential information for your permit test. Review these common questions to prepare for the CLP exam.
CLP Score Calculator
Expect to spend between $150 and $300 to obtain your CLP permit. This is a small investment compared to the potential earnings of a professional driver.
CLP Test Day Checklist
- ✓Valid Driver's License
- ✓Proof of Citizenship/Residency
- ✓Social Security Card
- ✓DOT Medical Card
- ✓Payment for Exam Fee
- ✓CDL Application Form
- ✓10-Year Driving Record (if applicable)
- ✓Glasses/Contacts (if needed)
Start Your Trucking Career
You're just one test away from getting behind the wheel. Take our free CLP practice test now and ensure you pass on your first try. Don't risk a re-test fee!
You must hold your CLP for at least 14 days before you are eligible to take the CDL skills test. Use this time for supervised driving practice.
- +Validates your knowledge and skills objectively
- +Increases job market competitiveness
- +Provides structured learning goals
- +Networking opportunities with other certified professionals
- −Study materials can be expensive
- −Exam anxiety can affect performance
- −Requires dedicated preparation time
- −Retake fees apply if you don't pass
Pros and Cons at a Glance
| Pros | Cons |
|---|---|
| Validates your knowledge and skills objectively | Study materials can be expensive |
| Increases job market competitiveness | Exam anxiety can affect performance |
| Provides structured learning goals | Requires dedicated preparation time |
| Networking opportunities with other certified professionals | Retake fees apply if you don't pass |
Sample Commercial Learner's Permit Practice Questions
Try these questions from our free Commercial Learner's Permit practice tests. The correct answer and an explanation follow each question.
How long must you hold a Commercial Learner's Permit (CLP) before taking the CDL road test in most states?
- A. 1 week
- B. 14 days
- C. 30 days
- D. 6 months
Answer: B. 14 days
Federal regulations mandate that a Commercial Learner's Permit (CLP) holder must hold the permit for a minimum of 14 days before being eligible to take the Commercial Driver's License (CDL) road skills test. This waiting period ensures that applicants have sufficient time to practice supervised driving and become familiar with the operation of a commercial motor vehicle before attempting the final skills examination.
A CLP holder has a school bus (S) endorsement learner permit. Which restriction applies specifically to this endorsement during the CLP period?
- A. The CLP holder may not drive a school bus route even with a supervisor
- B. The CLP holder may not transport pre-primary through 12th grade students, even with a supervisor present
- C. The CLP holder may not operate a school bus on public roads
- D. The CLP holder must have a separate medical certificate for school bus driving
Answer: B. The CLP holder may not transport pre-primary through 12th grade students, even with a supervisor present
A school bus CLP holder must not carry school-age students (pre-K through grade 12) during any practice, regardless of supervisor presence.
How many attempts are typically allowed to pass a CLP knowledge test before the learner's permit expires?
- A. As many as the state allows within the permit validity period
- B. Only one attempt is allowed
- C. Exactly three attempts total
- D. Two attempts then a mandatory waiting period
Answer: A. As many as the state allows within the permit validity period
Most states allow multiple retake attempts within the CLP validity period, though fees may apply for each attempt.
Which of the following restrictions is placed on a Commercial Learner's Permit (CLP) holder?
- A. You cannot drive after sunset
- B. You must be accompanied by a licensed CDL holder at all times
- C. You are prohibited from transporting hazardous materials
- D. You are only allowed to drive during the week
Answer: B. You must be accompanied by a licensed CDL holder at all times
A fundamental restriction placed on a Commercial Learner's Permit (CLP) holder is that they are never permitted to operate a commercial motor vehicle independently. They must always be accompanied by a licensed CDL holder who is qualified to operate the type of commercial vehicle being driven. This ensures safety and provides continuous instruction and supervision during the learning phase.
CLP Questions and Answers
Official Resources
- Federal Motor Carrier Safety Administration (FMCSA) — the federal agency that sets the national commercial learner's permit and CDL standards all states must follow.
- USAGov: State Motor Vehicle Services — the official directory for finding your state DMV, which issues your CLP and schedules the written knowledge tests.
Sources & last verified
- ecfr.gov — passing score (official source). “To achieve a passing score on each of the knowledge tests, a driver applicant must correctly answer at least 80 percent of the questions.” Verified Oct 25, 2026 · source checked Oct 18, 2026.
- ecfr.gov — retake policy, validity, renewal (official source). “The CLP holder is not eligible to take the CDL skills test in the first 14 days after initial issuance of the CLP.” Verified Oct 25, 2026 · source checked Oct 18, 2026.
- U.S. Federal Motor Carrier Safety Administration (FMCSA), through the state driver licensing agencies that issue the per — eligibility (official source). “You are required to possess the CLP for 14 days and complete applicable entry-level driver training to be eligible to take the CDL skills test.” Verified Oct 26, 2026 · source checked Oct 26, 2026.
- ecfr.gov — other (official source). “backing” Verified Oct 29, 2026.
How we verify: editorial & fact-checking policy. Report an error: contact us.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- ecfr.gov — Renewal, retake policy, score validity, passing score · verified Oct 2026