Mississippi HazMat Test (MS) 2026

4.7 out of 5 (185 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Are you ready to take on the challenge of the Mississippi HazMat practice test? This essential MS DMV practice test is designed to thoroughly prepare you for the HazMat endorsement on your commercial driver's license. As a critical part of your CDL training, the Mississippi HazMat CDL test focuses on the vital areas you'll need to master, including identification, handling, transportation, emergency procedures, placarding, and TSA security requirements. Our Mississippi permit practice test ensures that you are well-prepared by covering every aspect necessary for safe and efficient handling of hazardous materials. The test is composed of 20 multiple-choice questions, and you'll need to answer at least 16 correctly to pass. The questions are carefully curated to reflect those you will encounter on the actual DMV HazMat test, giving you a realistic preview of what to expect. One of the standout features of our Mississippi practice permit test is the immediate feedback provided after each question. This feedback is accompanied by detailed explanations, helping you understand the rationale behind each correct or incorrect answer. This method enhances your learning process, ensuring that you grasp the concepts thoroughly and are well-prepared for the Mississippi HazMat CDL test. At the end of the permit test practice, you'll receive a comprehensive summary of your performance. This summary will highlight the questions you answered incorrectly, along with the correct answers, allowing you to review and learn from your mistakes. This end-of-test summary is an invaluable tool in helping you identify areas where you need further study and practice. While preparing for your HazMat endorsement, remember that obtaining a commercial driver's license also requires passing the general knowledge test. Our website offers a range of prep tests, including those for the CDL general knowledge test, to ensure you are fully equipped to earn your CDL. Take advantage of our MS CDL HazMat test today and put yourself on the path to becoming a safe and knowledgeable HazMat driver. With thorough preparation and practice, you can confidently approach the actual test and secure your endorsement.
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Sample Mississippi HazMat Test Questions

Question 1

What document must a motor carrier give a driver transporting Division 1.1, 1.2, or 1.3 explosives?

  1. A A certificate granting an additional rest day
  2. B A receipt for an extra fire extinguisher
  3. C A general health-insurance notice
  4. D A copy of the rules in 49 CFR Part 397

Correct answer: D – A copy of the rules in 49 CFR Part 397

Federal regulations require the carrier to provide the driver with a copy of the rules in 49 CFR Part 397. The carrier must also provide written instructions describing procedures for an accident or delay, including emergency contacts, the nature of the explosives, and necessary precautions. The Mississippi CDL manual also instructs the driver to possess and understand these documents while driving.

Source: Mississippi Commercial Driver’s License Manual (March 2025) — § 9.6.10, “Where to Keep Shipping Papers and Emergency Response Information”, 49 CFR § 397.19(a), (c) – Instructions and Documents

Question 2

Which element appears first in the basic description of a hazardous material on a shipping paper?

  1. A Hazard class or division
  2. B Identification number
  3. C Proper shipping name
  4. D Any of these may appear first

Correct answer: B – Identification number

Federal shipping-paper rules place the identification number first in the basic description. It is followed by the proper shipping name, hazard class or division, and packing group, if one is assigned. These required elements must appear in sequence without unrelated information inserted between them, except as specifically authorized by the hazardous-materials regulations.

Source: Mississippi Commercial Driver’s License Manual (March 2025) — § 9.3.5, “The Item Description”, 49 CFR § 172.202(a)–(b) – Description of Hazardous Material on Shipping Papers

Question 3

What is the primary safety purpose of placards on a hazardous-materials vehicle?

  1. A To communicate the cargo's hazard
  2. B To contain the hazardous material
  3. C To measure the amount being transported
  4. D All of the above

Correct answer: A – To communicate the cargo's hazard

Mississippi's CDL manual explains that placards communicate the hazards of materials being transported. These exterior signs warn others and identify the cargo's hazard class. Packaging provides containment, while shipping papers document details such as the material and quantity.

Source: Mississippi Commercial Driver’s License Manual — § 9.1.2, “Communicate the Risk”, Mississippi Commercial Driver’s License Manual — § 9.3.3, “Lists of Regulated Products”

Question 4

How many numbered hazardous-material classes are recognized?

  1. A 7
  2. B 9
  3. C 23
  4. D 32

Correct answer: B – 9

Hazardous materials are organized into nine numbered classes based on the risks they present. Some classes are divided further; for example, Class 1 explosives includes Divisions 1.1 through 1.6. A division does not count as a separate hazard class.

Source: Mississippi Commercial Driver’s License Manual — § 9.3.1, “Definitions”, 49 CFR § 173.2 – Hazardous material classes and index to hazard class definitions

Question 5

A placarded hazmat vehicle covered by the railroad-crossing stop rule must stop how far from the nearest rail?

  1. A 10 to 20 feet
  2. B 15 to 20 feet
  3. C 15 to 50 feet
  4. D 20 to 50 feet

Correct answer: C – 15 to 50 feet

Federal regulations require a covered commercial vehicle to stop within 50 feet of, but not closer than 15 feet to, the tracks. Mississippi's CDL manual presents this as stopping 15 to 50 feet before the nearest rail. After stopping, look and listen for trains and cross in a gear that permits completion without shifting.

Source: Mississippi Commercial Driver’s License Manual — § 9.6.12, “Stop before Railroad Crossings”, 49 CFR § 392.10(a) – Railroad grade crossings; stopping required

Question 6

At a crash involving hazardous materials, which immediate action best protects the public?

  1. A Act as though no hazard exists
  2. B Leave the shipping papers in the cab and walk away
  3. C Keep people away and upwind from the scene
  4. D Remain inside the vehicle regardless of conditions

Correct answer: C – Keep people away and upwind from the scene

Mississippi's CDL manual directs the driver to keep people far from the scene and upwind of the hazardous material. The driver should warn others, call for help, and communicate the cargo's hazards to emergency personnel. Shipping papers and emergency-response information should be kept available for responders.

Source: Mississippi Commercial Driver’s License Manual — § 9.7.2, “Crashes/Incidents”

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