- Updated for January 2025
- Based on 2025 DC commercial driver's license manual
Free District of Columbia CDL HazMat Practice Test 2025
Adding the Hazardous Materials (Hazmat) endorsement to your Commercial Driver’s License (CDL) immediately opens the door to more job opportunities and a potential increase in earnings. In any business, positively setting yourself apart from the competition is the smart thing to do. The Hazmat endorsement certifies drivers to handle materials deemed hazardous by the U.S. government, covering items like explosives, certain types of fuel, industrial chemicals, radioactive materials, and infectious substances. The main purpose of this endorsement process is to prioritize safety, yours as well as that of the people and environment in your driving area.
To earn the Hazmat endorsement in District of Columbia, you must first pass a Transportation Security Administration (TSA) fingerprinting and background check before taking the DMV knowledge test. Note the word, “before.” This means that you shouldn’t wait to perform that task. Do it now and use the waiting period to study and practice for the test. The 30-question test, which must be passed with a minimum score of 80% or 24 out of 30 questions, covers federal regulations, substance handling, material packaging, quantity limits, and transport configurations for hazardous materials (District of Columbia CDL Handbook). Also, it’s important to note that the Hazmat endorsement in District of Columbia is only available to drivers aged 21 and older.
Consider the potential increase in opportunities and pay with this endorsement. According to the 2025 District of Columbia CDL manual, with the Hazmat endorsement you can haul a broader variety of cargo and are immediately more marketable to employers. In District of Columbia, there are multiple industries with cargo transport that require a Hazmat endorsement, including chemical manufacturing (Dow Chemicals has offices in DC), petroleum, and medical and pharmaceutical (MedStar has multiple health centers in the District of Columbia requiring hazmat transport. An impressive list of new opportunities, right? Take a look at what we’ve done to simplify your process!
Our online District of Columbia DMV Hazmat Endorsement practice tests are strategically designed to eliminate the overwhelming amount of unnecessary information you’ll find on the internet. We take you straight to the relevant material. Our tests mimic both the structure and content of the official DMV test, ensuring you are well prepared. Once you have received the TSA results, have practiced with our online tests, and feel ready, you’ll visit the DMV with the necessary documents, pay the fee, pass the test, and be immediately upgraded!
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Triple-checked for accuracy
What you need to know
What to expect on the actual DC DMV exam
questions
correct answers to pass
passing score
Helpful links
List of questions (classic view)
- The Emergency Response Guidebook (ERG)
- A safe haven is
- What is the purpose of a driver placarding his or her vehicle?
- Which of the following is NOT an acceptable type of marking for hazardous materials?
- How far away are you allowed to park from a bridge, tunnel, or building if you are carrying Division 1.2 or 1.3 materials?
- If you are already carrying 100 pounds of silver cyanide, what precautions must you take if you are given papers at the dock to carry 100 cartons of battery acid?
- A placarded vehicle must carry a fire extinguisher with a minimum rating of
- Which of the following hazard classes uses a transport index to determine how much of it can be loaded on a single vehicle for transport?
- Cargo tanks are
- What are the main differences between a cargo tank and a portable tank?
- Which of the following materials is an acceptable floor liner for moving Division 1.1 or 1.2 materials?
- When shippers package the material, they are trying to
- If you are carrying Division 1.2 or 1.3 materials, how far away must you park from the traveled portion of the roadway?
- To determine if you need to use placards, which of the following do you NOT need to know?
- What is a technical name?
- Besides the shipping papers and the packages, the other two places where the hazardous material identification number must appear are
- How often should you check the tires on a placarded trailer that has dual tires?
- What action should you take if you discover your hazardous materials shipment leaking at a rest stop but there is no phone available?
- Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?
- Which of the following are necessary qualifications for non-bulk packaging?
- You must NEVER smoke or perform any activity involving fire, within 25 feet of
- Your engine runs a pump when you are delivering compressed gas. After finishing the delivery, when should you turn off the engine?
- Where are the two main places where the hazardous material identification number appears?
- In what location must you keep your shipping papers that describe any hazardous materials?
- Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?
- A shipping paper for hazardous materials must include
- If there is an accident involving hazardous materials, who reports it to the proper government agency?
- If you are carrying a total of less than 200 pounds of the hazard classes in Placard Table 1,
- A vehicle contains 500 pounds each of Division 1.1 explosives and Division 1.2 explosives. You must have
- Placards must be at least _______ from all other markings.
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