Washington HazMat Test (WA) 2026

4.9 out of 5 (125 votes)
80% Passing score
20 Questions
4 Mistakes allowed
For WA drivers aiming to obtain a HazMat endorsement, thorough preparation is key to passing the Washington state HazMat CDL test. This Washington DOL practice test offers an extensive review of all critical areas necessary to ensure your readiness. Covering essential topics such as identification, safe handling, transportation, emergency procedures, proper placarding, and TSA security requirements, this knowledge test practice is designed to give you the confidence needed to excel. One of the most vital aspects of transporting hazardous materials is having immediate access to emergency response information. Our WA HazMat test emphasizes this necessity, preparing you for real-world scenarios where quick, informed decisions can make all the difference. With each Washington state practice written driving test, you'll encounter 20 carefully crafted multiple-choice questions that mirror the actual state driving test practice format. To pass, you need to answer 16 questions correctly, ensuring a robust understanding of the material. Our state driving test practice is regularly updated for 2026 to reflect the latest driving laws and regulations, providing you with the most relevant and up-to-date information. Whether you're using a mobile device, desktop, or tablet, our Washington DMV practice test is accessible online anytime, anywhere. This means you can study at your own pace, without the stress of a ticking clock. Another advantage of our WA CDL HazMat test is the ability to take it multiple times. This feature allows you to build your confidence by revisiting the questions until you're fully comfortable with the material. The diverse range of questions ensures that each attempt provides a comprehensive review, helping you gauge your overall readiness before moving on to the next CDL practice test. Prepare for your Washington state HazMat test with confidence, knowing that you are studying with a resource designed to help you succeed.
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Sample Washington HazMat Test Questions

Question 1

Which item is not one of the three lists commonly checked when identifying regulated hazardous materials?

  1. A The Hazardous Materials Table
  2. B An EPA dangerous materials list
  3. C The List of Marine Pollutants
  4. D The List of Hazardous Substances and Reportable Quantities

Correct answer: B – An EPA dangerous materials list

The Washington guide directs drivers, carriers, and shippers to check three federal lists: the § 172.101 Hazardous Materials Table, Appendix A’s List of Hazardous Substances and Reportable Quantities, and Appendix B’s List of Marine Pollutants. A material may appear on one, two, or all three. An “EPA dangerous materials list” is not one of these three identified lists.

Source: Washington State Commercial Driver Guide — Section 9, “The Hazardous Materials Table”

Question 2

When a cargo tank is loaded with a Class 3 liquid through an open filling hole, how long must the bonding connection remain in place?

  1. A From after the filling hole is opened until liquid flow stops
  2. B From before the filling hole is opened until after the last filling hole is closed
  3. C Only while the liquid is flowing into the tank
  4. D No bonding connection is needed if the vehicle’s engine is off

Correct answer: B – From before the filling hole is opened until after the last filling hole is closed

Federal hazardous-materials rules require the electrical connection to be made before any filling hole is opened and kept in place until after the last filling hole is closed. The Washington guide summarizes the same procedure for filling a cargo tank through an open hole. Different provisions apply to vapor-tight loading or unloading connections.

Source: Washington State Commercial Driver Guide — § 9.5.3, “Flammable Liquids”, 49 CFR § 177.837(c)(1) – Class 3 (Flammable Liquid) Materials

Question 3

A CMV that must stop at a railroad crossing because of its hazardous-material placarding 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

The vehicle must stop no closer than 15 feet and no farther than 50 feet from the nearest rail. The driver must look and listen for trains and proceed only after determining that the tracks can be crossed safely without stopping. The vehicle should cross in a gear that does not require shifting on the tracks.

Source: Washington State Commercial Driver Guide — § 9.6.12, “Stop Before Railroad Crossings”., 49 CFR § 392.10(a)–(b) — Railroad Grade Crossings; Stopping Required

Question 4

What do the symbols “A” and “W” in Column 1 of the Hazardous Materials Table indicate?

  1. A The material is exempt from regulation during air and water transportation
  2. B The proper shipping name is limited to domestic transportation
  3. C The entry identifies an internationally approved shipping name
  4. D The entry applies only to air or water transportation, subject to specified exceptions

Correct answer: D – The entry applies only to air or water transportation, subject to specified exceptions

The “A” symbol generally limits the entry to transportation by aircraft, unless the material is a hazardous substance or hazardous waste. The “W” symbol generally limits it to transportation by water, unless the material is a hazardous substance, hazardous waste, or marine pollutant. These symbols describe transportation modes, not freedom from restrictions.

Source: Washington State Commercial Driver Guide — § 9.3.3, “Lists of Regulated Products”., 49 CFR § 172.101(b)(2), (6) — Purpose and Use of Hazardous Materials Table

Question 5

Except for a brief stop required by operating necessities, a vehicle carrying Division 1.1, 1.2, or 1.3 explosives must not be parked within how many feet of an open fire?

  1. A 100 feet
  2. B 200 feet
  3. C 300 feet
  4. D 500 feet

Correct answer: C – 300 feet

The Washington State Commercial Driver Guide prohibits parking a vehicle carrying Division 1.1, 1.2, or 1.3 explosives within 300 feet of an open fire. The same distance applies to bridges, tunnels, buildings, and places where people gather. A brief stop required for operating necessities, such as fueling, is excepted.

Source: Washington State Commercial Driver Guide — § 9.6.1, “Parking With Division 1.1, 1.2, or 1.3 Explosives”., 49 CFR § 397.5(d) — Attendance and Surveillance of Motor Vehicles

Question 6

Which document should a driver examine first to determine whether a shipment contains hazardous materials?

  1. A The vehicle maintenance report
  2. B The shipping papers
  3. C The loading-dock inspection log
  4. D The carrier’s fuel receipts

Correct answer: B – The shipping papers

Shipping papers identify regulated materials through entries such as the proper shipping name, hazard class, and identification number. Hazardous-material entries may also be highlighted or identified by an “X” or “RQ.” Packages should not be opened merely to determine whether their contents are hazardous.

Source: Washington State Commercial Driver Guide — § 9.3.8, “Recognizing Hazardous Materials”.

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