Answers for the road ahead
Clear, no-nonsense answers to the questions we hear most from learner drivers and CDL candidates. Can’t find what you need? Reach out — we’re quick to reply.
Learner Permits
Everything you need to know about getting a learner’s permit in the US — eligibility, testing, and what happens after.
What is the minimum age to get a learner’s permit?
The minimum age varies by state, but most states issue a learner’s permit at 15 or 16 years old. Some states allow a learner’s permit at 14 for approved driver’s education programs, while a small number start at 16. You’ll typically need parental consent if you are under 18.
Always check your state DMV website for the exact age and required documents — these rules can change.
How many questions are on the written permit test?
Most states use between 20 and 40 questions on the learner’s permit written test. A passing score is usually around 80% (often 16 out of 20 or 32 out of 40), though some states like California and Texas use 46 or 50 questions respectively.
Our free practice tests mirror the format of your state exam so you can walk in knowing exactly what to expect.
Can I retake the permit test if I fail?
Yes, most states allow you to retake the permit test. However, there is often a mandatory waiting period (usually 1 to 7 days) before you can try again. Some states also charge a re-examination fee. If you fail multiple times, you may need to take a driver’s education course before your next attempt.
Do I need to bring anything to the DMV for my permit test?
Yes. Bring proof of identity (usually a birth certificate or passport), proof of residency (utility bill or official mail), your Social Security number, and — if you are under 18 — parental consent. Many states also require proof of driver’s education enrollment if you are under the standard age.
What happens after I pass the permit test?
You’ll receive your learner’s permit, which comes with restrictions — usually you must drive only with a licensed adult aged 21 or older in the passenger seat, observe curfew hours, and avoid distractions like cell phones. Your permit is valid for a set period, often one to two years, during which you build supervised driving hours and then apply for a probationary license.
CDL & Endorsements
From Class A to hazmat — what every CDL candidate needs to know before test day.
What is the difference between a Class A, B, and C CDL?
A Class A CDL allows you to operate any combination of vehicles with a gross combination weight rating of 26,001 lbs or more, provided the towed unit exceeds 10,000 lbs — typically tractor-trailers. A Class B covers single vehicles weighing 26,001 lbs or more, or towing a unit under 10,000 lbs, such as straight trucks and dump trucks. A Class C covers vehicles designed to carry 16 or more passengers or to haul hazardous materials, and includes smaller commercial vehicles not covered by A or B.
Do I need a separate endorsement for air brakes?
Yes. If you drive a vehicle equipped with air brakes you must pass the air brakes knowledge test and have the restriction removed from your license. If you take the CDL skills test in a vehicle without air brakes, you receive an “L” restriction prohibiting you from operating air-brake-equipped vehicles.
Which endorsement do I need for hazardous materials?
The Hazmat (H) endorsement requires a passing score on the hazardous materials knowledge test plus a TSA Security Threat Assessment, which includes fingerprinting and a background check. If you intend to haul hazardous materials in a tank vehicle, you’ll need the combination X endorsement instead.
How long is a CDL valid in most states?
Most states issue CDLs valid for four to eight years, in line with that state’s driver’s license cycle. CDLs with a Hazmat endorsement are typically valid for a shorter period and require a renewal of the TSA threat assessment — commonly every five years or less.
Test Day & Licensing
What to expect at the DMV, how to prepare, and what happens after you pass.
How many questions are on the DMV written knowledge test?
Question counts vary by state, but a typical permit test runs between 36 and 50 multiple-choice questions, and most jurisdictions require a passing score of 80% or higher. You generally have the option to skip a limited number of questions per attempt. Always check your state’s official handbook for the exact format.
What should I bring to the DMV on test day?
Most states require proof of identity, proof of residency, your Social Security number, and — for first-time applicants — a completed driver education certificate if applicable. If you are a minor, a parent or legal guardian usually needs to sign a consent form. Bring originals, not photocopies, and double-check your state’s approved document list before you go.
Can I take the written test more than once?
Yes, most states allow retakes, though some impose a waiting period — commonly one to seven days — between failed attempts and may charge a re-examination fee. Many jurisdictions also cap the number of attempts before you must submit a new application. Check your state DMV’s rules for specifics.
What happens after I pass the permit test?
Once you pass, the DMV issues your learner’s permit — sometimes the same day, sometimes by mail. You’ll then complete a required holding period of supervised driving hours before you can schedule your road skills test. Keep your permit on you whenever you drive, and remember that a licensed adult must be in the passenger seat at all times.
Ready to pass on your first try?
Practice with realistic questions pulled straight from official state manuals. Study at your pace, track your scores, and walk into the DMV with confidence.
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