Free Hawaii CDL Practice Tests — Your Complete Study Guide
Pass your Hawaii CDL permit exam with 80%+ on the first try
Updated: August 2026
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.
Free Hawaii CDL Practice Tests — Your Complete Study Guide
What should you do when merging?
- Merge at a much lower speed than the flow of traffic.
- Use your mirrors to make sure the gap in traffic is large enough for you to enter safely.
- Merge without signaling.
Documents related to hazardous materials transportation must be stored ___.
- In the pouch of the driver door.
- Attached to the sun visor.
- In a box on the trailer.
Which of these statements about driving through a tunnel is correct?
- Keep windows open for fresh air.
- Turn off all lights inside the truck.
- There may be strong winds when exiting.
Among these vehicles, which is more likely to experience off-tracking during turns?
- Tractor with 45-feet trailer.
- 28-feet box truck
- 45-feet straight truck
Under what circumstances should you sound your horn?
- If it helps to avoid a crash.
- To let others know you are running late.
- To say hello to a friend on the sidewalk.
Identify the incorrect statement regarding alcohol consumption.
- A drinker can control how fast his or her body absorbs alcohol.
- Alcohol goes directly from the stomach to the blood stream.
- BAC is determined by how fast you drink; how much you drink and how much you eat.
If your vehicle is missing ____ or more leaves from any leaf spring, it won't be allowed to be used.
- 1/3
- 1/4
- 1/2
Select the correct statement regarding the transportation of hazardous materials.
- Any truck carrying any amount of hazardous materials must have placards.
- Hazardous materials can be disposed of in regular trash bins if the containers are sealed.
- All hazardous materials present health and safety danger.
To figure out how much alcohol is in someone's blood (BAC), you need to know:
- Their height.
- The time of day they drink alcohol
- Their weight.
What is the right way to hold a steering wheel?
- With one hand on the top of the wheel and the other on your lap.
- With your knees, while using your hands to adjust the radio.
- With both hands, on opposite sides of the wheel.
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 Hawaii, you must pass the written permit tests that match your license class — General Knowledge for everyone, plus Combination Vehicles and Air Brakes where they apply — at the Hawaii Department of Motor Vehicles. Similar to a regular driver's license permit exam, these are timed, multiple-choice tests based on the official Hawaii CDL handbook.
All of our practice material is built from the official Hawaii 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. All 2,500+ questions and the study tools are in the app with a subscription — download the CDL Help app.
Hawaii CDL Knowledge Test: Format & Requirements
The CDL knowledge (written) test follows the same federal standards in Hawaii as nationwide. Here's what to expect.
Questions by test
The 80% passing score is a federal standard (FMCSA, 49 CFR 383.135). Question counts follow the AAMVA model used by most states and can vary by state. Always confirm current details with your state's official CDL handbook.
Hawaii CDL Fees & Licensing
per year of validity (county-administered)
State-charged fees as of June 2026. Amounts change — confirm current fees with the official agency.
CDL Requirements in Hawaii
capitolhonolulumauicountyhidot49 CFR §391.11
- Citizenship and immigration-status requirements apply and changed under 2026 federal rules — verify your eligibility directly with your county’s Commercial Driver Licensing Office before applying (see Official Sources below).
- Hawaii has no single state DMV for CDLs — Honolulu (City & County), Maui, Hawaii and Kauai counties each run their own CDL office, while the state Department of Transportation publishes the manual every county tests against.
- Must be at least 18 to hold a Commercial Learner’s Permit; the full CDL itself needs you to be 21.
- Pass a vision test (at least 20/40 in both eyes) and provide a current DOT medical certificate (Form MCSA-5876) from your medical examiner.
- Complete Entry-Level Driver Training with an FMCSA-registered provider before skills testing — required since February 7, 2022 for new Class A/B applicants and certain endorsements.
- Pay the $30 permit application fee and pass the general knowledge test ($15) plus any endorsement knowledge tests you need ($5 each) at your county’s licensing office.
- Fail a knowledge test and you wait a minimum of one week before retesting.
- Book your skills-test appointment in person at the CDL office — $50, non-refundable, and once made and paid for it cannot be rescheduled.
- Pass all three parts of the skills test in order: pre-trip inspection, the backing/off-road skills test, then the road test.
- Receive your CDL, priced at $5 per year (or fraction of a year) of the term you choose — Maui County’s own schedule shows $40 for a full 8-year card.
- Renewal is in person only — no mail renewal — with a fresh vision test, your certified U.S. birth certificate, proof of residency and no outstanding disqualifying convictions.
- Keep the CDL current: Hawaii gives a 90-day grace period after expiration before a $5 monthly late fee applies, and a full year expired means retesting from scratch. An out-of-state CDL gets no grace period at all.
- Core CDL testing fees matched exactly between Honolulu and Maui counties when checked, but reinstatement and oral-test fees did not — confirm the exact numbers with your own county if you are outside Honolulu.
Official Hawaii CDL Handbook
The official Hawaii Commercial Driver's License 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 Hawaii 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 Hawaii-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 Hawaii-specific requirements
- Safe driving techniques, vehicle inspection, and cargo handling
- All endorsement categories and testing requirements
CDL Practice Tests in Nearby States
Testing near Hawaii? Practice for a neighboring state's CDL exam too.
Non-Domiciled CDL Information
Important information about non-domiciled commercial driver's licenses in Hawaii.
Federal regulations on non-domiciled CDLs are changing rapidly. The information below reflects the latest known state actions.
Hawaii has a statutory framework for non-domiciled CDLs under Hawaii Revised Statutes § 286-231, which defines a "non-domiciled commercial driver's license" as a CDL issued to an individual domiciled in a foreign country meeting 49 CFR 383.23(b)(1), or an individual domiciled in another state meeting 49 CFR 383.23(b)(2). Honolulu’s own CDL application guidance, however, states that to obtain a Commercial Learner’s Permit "you must be domiciled in Hawaii" — a narrower framing that suggests the county offices are restrictive in practice even though the statutory path exists.
Under the FMCSA final rule published February 13, 2026 (effective March 16, 2026), eligibility for non-domiciled CLPs and CDLs nationwide is limited to H-2A, H-2B and E-2 status. Neither the county CDL offices nor the state Department of Transportation has published county-level guidance reconciling that federal change with HRS § 286-231. CDL Help does not provide legal or immigration advice, and these requirements are changing quickly — confirm your specific situation directly with your county’s licensing office and the official FMCSA resources linked below.[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 Hawaii.
Hawaii does not currently administer a separate state-level English Language Proficiency (ELP) test for CDL applicants. However, all Hawaii 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. Hawaii CDL applicants should be prepared to demonstrate English proficiency during any roadside inspection or compliance review.
Hawaii CDL facts
| Fact | Value | Source |
|---|---|---|
| Commercial learner's permit (CLP) application fee | $30Matches Maui County’s official fee schedule exactly (also $30) — appears to be a statewide CDL testing fee, not a county-set one | honolulu.gov |
| CDL issuance fee | $5 per yearProrated by term length; Maui’s fee schedule shows $40 for a full 8-year card (ages 25–71) — 8 × $5 | honolulu.gov |
| General knowledge test fee | $15Matches Maui County’s official fee schedule exactly | honolulu.gov |
| Each special (endorsement) knowledge test | $5Matches Maui County’s "Other Endorsement Test" fee exactly; Honolulu’s fee table does not carve Hazmat out of this line the way some states do | honolulu.gov |
| Skills test appointment fee | $50Non-refundable; matches Maui County’s CDL road-test fee exactly | honolulu.gov |
| Duplicate license / information-change fee | $15Matches Maui County’s CDL duplicate fee exactly | honolulu.gov |
| CDL reinstatement fee | $41 (or $66 if renewing)Honolulu’s figure — Maui County’s official fee schedule states a different CDL reinstatement fee ($20), so this is not a uniform statewide amount; see openQuestions | honolulu.gov |
| Aural (oral) test, additional fee | $15Honolulu’s flat add-on figure — Maui County’s schedule instead separates Oral General Knowledge ($30) from Oral Other Endorsement Test ($20); see openQuestions | honolulu.gov |
| Minimum age (learner's permit) | 18 | honolulu.gov |
| Commercial learner's permit (CLP) fee — Maui County cross-check | $30Maui County’s own fee schedule, listed under "CDL Only" — matches Honolulu’s figure exactly | mauicounty.gov |
| CDL issuance fee, full 8-year term (ages 25–71) | $40Maui County’s own fee schedule — 8 × Honolulu’s $5/year figure, another exact cross-county match | mauicounty.gov |
| Minimum age (full CDL) | 21 | honolulu.gov |
| Entry-Level Driver Training (ELDT) | Required for new Class A/B applicants and certain endorsementseffective February 7, 2022 | honolulu.gov |
| Vision standard | 20/40 in both eyes | honolulu.gov |
| Medical certificate | Current DOT Certificate (Form MCSA-5876) | honolulu.gov |
| Skills-test retest wait | Minimum one week | honolulu.gov |
| Expired-CDL grace period | 90 daysAfter 90 days a $5 monthly late fee applies; after one year expired, retesting is required. No grace period at all for an out-of-state CDL. | honolulu.gov |
| Renewal method | In person onlyMail renewal is not offered | honolulu.gov |
| Skills test structure | Three sequential parts: pre-trip inspection, skills (backing) test, road test | honolulu.gov |
| Licensing agency | Honolulu Dept. of Customer Services, Commercial Driver Licensing OfficeHawaii, Maui and Kauai counties run their own separate CDL offices; core CDL testing fees match Honolulu’s exactly on the one county (Maui) whose schedule could be fetched | honolulu.gov |
How to get a CDL in Hawaii
- Confirm you are at least 18 (Hawaii’s minimum age for a Commercial Learner’s Permit — the full CDL itself needs you to be 21) and already hold a valid Hawaii driver’s license. Source
- Have your Medical Examiner complete a current DOT Certificate (Form MCSA-5876) and pass a vision test — Honolulu requires at least 20/40 in both eyes. Source
- Pay the $30 permit application fee and pass the general knowledge test ($15) plus any endorsement knowledge tests you need ($5 each) at your county’s licensing office. Source
- If you fail a knowledge test, you must wait a minimum of one week before retesting. Source
- Complete Entry-Level Driver Training with an FMCSA-registered provider before skills testing — required for new Class A/B CDL applicants and certain endorsements since February 7, 2022. Source
- Book your skills-test appointment in person at the CDL office — appointments cost $50 (non-refundable) and, once made and paid for, cannot be rescheduled. Source
- Pass all three parts of the skills test in order — pre-trip inspection, the backing/off-road skills test, then the road test. Source
- Receive your CDL — priced at $5 per year (or fraction of a year) of the term you choose. You must be 21 to hold the full license, even though the permit only needed you to be 18. Source
Official Honolulu Dept. of Customer Services, Commercial Driver Licensing Office (Hawaii, Maui and Kauai counties each administer their own CDL office) links
As of September 2, 2026, verified against Honolulu Dept. of Customer Services, Commercial Driver Licensing Office (Hawaii, Maui and Kauai counties each administer their own CDL office).
Hawaii CDL questions
- How much does a Hawaii CDL cost?
- Budget $30 for the permit, $15 for the general knowledge test and $5 for each endorsement test, then $50 for the (non-refundable) skills-test appointment. The CDL itself is priced per year of the term you choose — $5/year on Honolulu’s schedule, which lines up with Maui County’s published $40 for a full 8-year card. These core testing fees matched exactly between the two counties checked here, but reinstatement and oral-test fees did not, so if you are outside Honolulu, confirm the exact numbers with your own county’s licensing office. Source
- Is there a Hawaii DMV for commercial licenses?
- No single state DMV runs CDL licensing in Hawaii — each of the four counties administers its own office: Honolulu’s Department of Customer Services, and the Department of Finance in Hawaii, Maui and Kauai counties. The state Department of Transportation publishes the CDL manual every county tests against, but you apply, test and renew at your own county’s office. Source
- What are Hawaii’s minimum ages for a CDL?
- You can get a Commercial Learner’s Permit at 18, but you must be 21 to hold the full CDL — the same 18/21 split as the federal intrastate/interstate rule. Maui County’s own permit-eligibility page states a flat 21-or-older requirement without mentioning an 18-year-old permit path, so confirm the age rule with your own county if you are 18–20. Source
- What happens if I fail a Hawaii CDL test?
- For the knowledge and skills tests, Honolulu requires a minimum one-week wait before you can retest. Once you have a CDL, keep it current — Hawaii gives a 90-day grace period after expiration before a $5 monthly late fee kicks in, and if it stays expired a full year you have to retest from scratch. An out-of-state CDL gets no grace period at all. Source
- Can I renew my Hawaii CDL by mail?
- No — Honolulu requires an in-person renewal with a current DOT medical certificate, a fresh vision test (20/40 in both eyes, corrected is fine), your certified U.S. birth certificate, proof of residency and no outstanding violations or disqualifying convictions. Hazmat holders must also pass the hazmat knowledge test again at renewal. Source
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