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Alaska HazMat CDL Practice Test

Practice for your HazMat CDL exam with questions based on the official Alaska CDL handbook

Updated: August 2026

What's on the Alaska HazMat CDL test

Answering from memory beats re-reading — retrieval practice roughly doubles what you remember a week later. These free questions are modeled on the official HazMat CDL knowledge test.

Questions
30
To pass
24/30 correct (80%)
Updated
June 2026
100% free

The Alaska CDL HazMat test follows the AAMVA standard used by most states: 30 questions, with 24 correct answers (80%) needed to pass. A CDL learner's permit in Alaska costs $15 (Alaska Division of Motor Vehicles (DMV) fee schedule, June 2026).

Start the practice test

Alaska HazMat CDL Practice Test

  1. The shippers package hazardous materials, they must certify that this was done according to the regulations. The only exception is when:

    • The driver is given a sealed cargo compartment
    • The shipper is a private carrier carrying his or her own product
    • The shipment is a hazardous waste

    When companies send out dangerous goods, they must follow rules to pack them safely. The only time they don't have to is if the company is moving its own products and not selling the service.

  2. How many hazard classes are there?

    • 3
    • 9
    • 10

    There are 9 different types of dangers or hazard classes that truck drivers need to know about when they are carrying goods. These classes help them understand what kind of special care or rules they need to follow to keep the roads safe.

  3. Apart from the shipping papers and the packages, what other two locations must display the hazardous material identification number?

    • on the front bumper and on the inside of the cab door.
    • on the exhaust system and on a decal on the dashboard.
    • on the driver’s door and on the steering column.
    • on all bulk packaging and on the cargo tanks.

    Beyond shipping papers and packages, the hazardous material identification number is also required to be shown on cargo tanks and on all bulk packaging.

  4. A driver places placards on their vehicle in order to:

    • to show the vehicle’s maximum legal weight.
    • to advertise the company hauling the load.
    • to communicate risk.
    • to indicate the driver’s route and destination.

    Placards are exterior signs on a vehicle that alert others to the presence of hazardous materials and indicate the hazard class of the load.

  5. Why is the shipper required to sign the shipping paper?

    • To confirm the carrier has inspected and approved the shipment for transport
    • To certify that it has prepared the shipment in accordance with regulations
    • To confirm the carrier has received payment for transporting the shipment

    The shipping paper has to contain the shipper’s certification, signed by the shipper, confirming the shipment was prepared in compliance with the applicable regulations.

  6. Carriers must provide each driver who hauls Division 1.1, 1.2, or 1.3 materials with:

    • a written list of emergency response phone numbers for local fire departments.
    • a copy of FMCSR Part 397.
    • a copy of the shipper’s facility address and receiving hours.

    Carriers are required to give drivers transporting explosives a copy of 49 CFR 397, “Transportation of Hazardous Materials; Driving and Parking Rules.” This part includes rules on hazardous materials routing, including factors to consider when selecting an appropriate route.

  7. Hazardous material identification numbers must be shown on portable tanks, cargo tanks, and other bulk packages. Regulations require black ______ numbers.

    • 75 mm
    • 125 mm
    • 100 mm

    Hazardous material identification numbers must appear on portable tanks, cargo tanks, and other bulk packaging. The rules specify black 100 mm (3.9 inch) numbers on orange panels, placards, or on a white diamond-shaped background when placards are not required.

  8. Helium is classified as a Class ____ hazardous material.

    • 2
    • 9
    • 1

    A hazardous material’s class indicates the type of risk it presents. There are nine hazard classes in total. Class 2 covers gases, including flammable gases (2.1) like propane, non-flammable gases (2.2) like helium, and toxic gases (2.3) such as compressed fluorine.

  9. Who must select the safest route when transporting placarded radioactive materials?

    • The state highway department
    • The receiver/consignee
    • The carrier

    If placarded radioactive materials have to be transported, the carrier is responsible for choosing the safest route. Once the route is selected, the carrier must inform the driver about the radioactive materials and provide the driver with the planned route.

  10. With most hazardous materials, you may park within 5 feet of the road briefly. If your work requires it. The materials that are the exception and do not allow parking this close to the road are?

    • Acids and poisons
    • Corrosives and oxidizers
    • Explosives 1.1 thru 1.3

    When it comes to parking near the road with hazardous materials, you usually can if it's quick and needed for work. But, don't do this with very explosive materials (like fireworks or dynamite), flammable stuff (like gasoline or propane), because it's too dangerous.

  11. A truck as hazardous material, when can it be moved without the placards on the truck?

    • Never
    • When the shipper says it's ok
    • To protect life or property

    If a truck is carrying dangerous materials, it usually must have special signs (placards) on it to show that it is hazardous. However, there is one exception to this rule. The truck can be moved without these signs only if it is necessary to protect people's lives or to prevent property from being damaged. This means safety is the top priority, and in an emergency situation, the truck can be moved even without the placards.

  12. Which option lists a required criterion for a package to qualify as non-bulk packaging?

    • A water capacity of 454 kg (1,000 pounds) or less if it is used as a receptacle for a gas
    • A maximum net mass of 400 kg (882 pounds) or less and a maximum capacity of 450 L (119 gallons) or less if it is used as a receptacle for a solid
    • A maximum capacity of 450 L (119 gallons) or less if it is used as a receptacle for a liquid
    • All of the above

    Non-bulk packaging must meet defined limits when used as a container for solids, liquids, or gases. It qualifies as non-bulk if it is: 450 L (119 gallons) or less for liquids; 400 kg (882 pounds) or less and 450 L (119 gallons) or less for solids; and 454 kg (1,000 pounds) or less for gases.

  13. If you are transporting Division 1.2 or 1.3 materials, what is the minimum distance you must park from a bridge, tunnel, or building?

    • 300 feet
    • 150 feet
    • 250 feet
    • 50 feet

    With a load of Division 1.2 or 1.3 explosives, you are required to park no closer than 300 feet from any bridge, tunnel, or other structure.

  14. Under what circumstances may a shipper shorten (abbreviate) the proper shipping name or hazardous material identification number on a shipping paper?

    • Only if regulations specifically authorize the shipper to do it
    • Only when the shipment is moving by highway within the same state
    • Only when the material is non-flammable and low hazard

    A shipper is not allowed to abbreviate a hazardous material’s identification number, hazard class, or proper shipping name unless the regulations explicitly permit that abbreviation. Abbreviations can interfere with correct identification and create safety risks.

  15. You must stop before a railroad crossing if your vehicle is transporting _______ of chlorine.

    • at least 100 gallons
    • any amount
    • more than 110 gallons

    If you are transporting any quantity of chlorine gas, you are required to stop at every railroad crossing and use extra caution before crossing. A train collision could cause a chlorine release, which is very dangerous because chlorine gas is poisonous. (If chlorine is being hauled in cargo tanks, a gas mask must be available in the cab.) Chlorine is also a strong oxidizer and can react with flammables to start fires, which may spread corrosive or toxic gases.

  16. You may allow another person to watch your vehicle only when it is…

    • parked at a public rest area while you take a break.
    • being watched by any licensed driver.
    • on the property of the shipper, carrier, or receiver.

    You may let someone else watch your vehicle only when you are on the property of the shipper, carrier, or consignee/receiver, since those parties understand the hazards and how to handle them.

  17. Which hazard class covers both flammable gases and non-flammable gases?

    • 2
    • 4
    • 9

    A material’s hazard class indicates the type of risk it presents. There are nine hazard classes. Hazard Class 2 is for gases, including flammable gases (2.1) like propane, non-flammable gases (2.2) like helium, and toxic gases (2.3) such as compressed fluorine.

  18. If you think there may be a cargo fire in your trailer and the cargo doors feel hot, what should you do?

    • crack the doors slightly to let heat and smoke escape.
    • leave the doors closed.
    • swing the doors fully open to ventilate the trailer.

    Hot cargo doors make it more likely a fire is burning inside. Opening the doors would add oxygen and can intensify the fire. Keeping the doors shut limits oxygen, so the fire may only smolder until firefighters arrive.

  19. By law, how regularly must employees involved in transporting hazardous materials be tested?

    • Within 90 days of hire and then every 3 years
    • Within 90 days of hire and then every 6 months
    • At least every 5 years

    People who transport dangerous stuff must be tested within 90 days of starting their job and then every 3 years to make sure they know how to handle these materials safely.

  20. Symbol column, the letter "G" stands for?

    • Identifies the proper shipping name for which one or more technical names of the hazardous material must be entered in parentheses, along with the basic description
    • Identifies the proper shipping name
    • Gases

    The letter "G" means you need to write the hazardous material's specific name next to its general name when shipping it.

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About the HazMat Test in Alaska

The HazMat endorsement test is required in Alaska for drivers who transport hazardous materials. It covers placarding, labeling, loading procedures, emergency response, and compliance with federal hazmat regulations. A TSA background check is also required.

The HazMat test is part of the CDL written exam administered by the Alaska Department of Motor Vehicles. You must pass this test along with the other required written tests to receive your Commercial Learner's Permit (CLP) in Alaska.

Our practice questions are built from the official Alaska CDL handbook and federal FMCSA regulations. Each question includes a detailed explanation to help you understand the material, not just memorize answers.

Alaska HazMat endorsement facts

Alaska CDL facts, each with its official source
FactValueSource
Duplicate CDL$35$15 for the non-REAL ID version; this is also what it costs to surrender an HME mid-cycledmv.alaska.gov
HazMat knowledge test feeNo fee at a DMV officeBusiness partners set their own feesdmv.alaska.gov
CDL fee when the endorsement is added to a new or soon-expiring licence$120Due when the CDL expires within 12 months or is being issued for the first timedmv.alaska.gov
Knowledge test pass mark80%The skills test is pass/fail — every required skill must be performed successfullydmv.alaska.gov
Knowledge test attemptsOnce per day until you passAlaska Department of Administration regulation 2 AAC 90.420dmv.alaska.gov
Where knowledge tests are givenAt a DMV office or an eligible business partnerNot every business partner administers CDL knowledge tests — call firstdmv.alaska.gov
Minimum age18 for intrastate driving; 21 for interstate, hazmat or a school bus endorsementdmv.alaska.gov
ResidencyMust be an Alaska resident domiciled in the statedmv.alaska.gov
Lawful statusProof of lawful status as a U.S. citizen or permanent residentdmv.alaska.gov
Self-certificationForm 413 with every original, renewal or upgrade CDL/CLP applicationA new Form 413 is also required to change your certification typedmv.alaska.gov
DOT medical certificateA physical MCSA-5876 is still required — Alaska has not joined National Registry IICopies may be emailed to doa.dmv.cdl@alaska.gov after issuancedmv.alaska.gov
Expired medical certificateThe CDL is downgraded within 60 days of the certificate expiringeffective January 1, 2012dmv.alaska.gov
Entry-Level Driver TrainingRequired for a first Class A or Class B CDL, an upgrade, and a first hazmat, passenger or school bus endorsementProviders must be listed on the FMCSA Training Provider Registrydmv.alaska.gov
ELDT before the HazMat knowledge testTheory training must be on the Training Provider Registry before you may testeffective February 7, 2022dmv.alaska.gov
Class C (permit class IC)A vehicle of 26,000 lb GVWR or less that carries 16+ passengers including the driver, or is placarded for hazardous materialsdmv.alaska.gov
Licensing agencyState of Alaska Division of Motor Vehicles (DMV)dmv.alaska.gov
Who may hold an Alaska HMEAt least 21, eligible for a Class A, B or C CDL, with proof of one of five accepted lawful statusesCitizen, lawful permanent resident, lawful nonimmigrant, refugee or asylee with unrestricted work authorizationdmv.alaska.gov
HazMat knowledge test30Multiple choice; required at original issuance, renewal AND transfer from another statedmv.alaska.gov
HazMat test pass mark80% or higherQuestions come from the Alaska CDL manualdmv.alaska.gov
Security threat assessment proofA valid unexpired TWIC, or TSA threat-assessment results issued within the previous 6 monthsdmv.alaska.gov
When the assessment is neededBefore an original issuance, renewal, out-of-state transfer or upgradedmv.alaska.gov
Where the TSA check is doneWith TSA/DHS before your DMV visit — the DMV cannot run itdmv.alaska.gov
TWIC as proofA non-recalled, unexpired TWIC card satisfies the hazmat background checkdmv.alaska.gov
HME validity5 years (the CDL itself generally 8 years)The endorsement carries its own expiry date on the back of the carddmv.alaska.gov
What sets the HME expiry dateYour TWIC expiry, or the last day authorized by the returned TSA assessmentdmv.alaska.gov
Renewal noticeMailed at least 60 days before the endorsement expiresAllow at least 30 days for the TSA application unless you hold a valid TWICdmv.alaska.gov
Transferring an HME into AlaskaShow proof of the prior endorsement before the Alaska hazmat knowledge testA valid or expired out-of-state CDL, or a certified driving record from that statedmv.alaska.gov
Fingerprinting waiverNone — every hazmat applicant is fingerprinted and background-checkeddmv.alaska.gov
Non-commercial hazmat endorsementDoes not exist in Alaska — the HME is only for Class A, B or C CDL holdersdmv.alaska.gov
What the DMV will not do until the requirements are metIssue, renew, transfer or upgrade a CDL carrying an HMEdmv.alaska.gov
Surrendering the HME mid-cycle$35Cost of the duplicate CDL issued when you drop the endorsement before renewaldmv.alaska.gov
HazMat on a learner permitNot available — the permit column for the H endorsement is “none”dmv.alaska.gov
TSA security threat assessment fee (federal)$85.25Non-refundable; paid to TSA, not the stateeffective January 1, 2025tsa.gov
TSA reduced fee (valid TWIC holders, where the state accepts it)$41tsa.gov
TSA clearance validity5 yearstsa.gov
When to enroll with TSAAt least 60 days before you need the endorsementTSA says some applications take more than 45 daystsa.gov
Combination tank and hazmat (X) endorsementBoth knowledge tests, ELDT for a first hazmat issuance, TSA check (or TWIC), age 21+dmv.alaska.gov

How to add the HazMat endorsement in Alaska

  1. Confirm you are eligible: at least 21 years old, able to hold a valid Alaska Class A, B or C CDL, and able to prove one of the five lawful statuses Alaska accepts (U.S. citizen, lawful permanent resident, lawful nonimmigrant, refugee or asylee with unrestricted employment authorization). Source
  2. If this is your first hazmat endorsement, complete ELDT theory training with a Training Provider Registry provider — Alaska will not let you sit the hazmat knowledge test until the training is on file. Source
  3. Enrol with TSA (or use a valid TWIC) before your DMV visit — the threat assessment and TWIC are issued by the Department of Homeland Security and cannot be done at the DMV. Alaska accepts a valid unexpired TWIC, or TSA threat-assessment results issued within the previous 6 months. Source
  4. Pass the Alaska hazardous materials knowledge test — 30 multiple-choice questions drawn from the Alaska CDL manual, 80% to pass, taken at a DMV office (no fee) or an eligible business partner. You may take it once per day. Source
  5. Apply at a DMV office to add the H (or X) endorsement. The DMV cannot issue, renew, transfer or upgrade a CDL with an HME until every one of these requirements is met; a first-time CDL, or one expiring within 12 months, costs $120. Source
  6. Watch the endorsement’s own expiry date on the back of the card: the HME runs 5 years (the CDL itself generally 8), it is tied to your TWIC or TSA assessment date, and the DMV mails a notice at least 60 days before it lapses. Source

Official State of Alaska Division of Motor Vehicles (DMV) links

As of September 2, 2026, verified against State of Alaska Division of Motor Vehicles (DMV).

Alaska CDL questions

What score do you need to pass an Alaska CDL test, and how soon can you retake it?
The minimum passing score for every CDL knowledge test is 80%, and under regulation 2 AAC 90.420 you may take a knowledge test once per day until you pass. The skills test is pass/fail — you must perform every required skill successfully — and a second road skills test can be given at least one week after the first if the department decides one is warranted. Source
Does Alaska still need a paper DOT medical card?
Yes. Unlike states that switched to electronic transmission in June 2025, the Alaska DMV has not integrated with National Registry II, so CLP and CDL holders must still obtain and keep a physical MCSA-5876 to present when applying. You self-certify your type of operation on Form 413 with every original, renewal or upgrade application, and an expired medical certificate downgrades the CDL within 60 days. Source
What does Alaska require for a hazmat (H) endorsement?
You must be at least 21, eligible for a Class A, B or C CDL, and prove an accepted lawful status. Complete ELDT theory training if this is your first hazmat endorsement, then pass a 30-question multiple-choice knowledge test at 80% — retaken in full at original issuance, renewal and transfer from another state. There is no DMV fee for the test, but you must present a valid TWIC or TSA threat-assessment results issued within the previous 6 months; the DMV cannot run that check for you. Source
How old do you have to be to get a CDL in Alaska?
Eighteen for intrastate driving within Alaska, and 21 to drive interstate, to carry hazardous materials, or to hold a school bus endorsement. Whatever your age you must also have held a valid driver licence for at least a year before applying. Source

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