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Free Wyoming (WY) CDL Hazardous Materials practice test 2026

H endorsement: placarding, shipping papers and the segregation table.

What’s different in Wyoming

Most Hazardous Materials questions are the same federal material in every state. 4 questions in the app are written for Wyoming alone, from the 2024 Wyoming Commercial Driver License Manual (Rules of the Road: Commercial & Heavy Vehicles, WYDOT, October 2024).

  • Wyoming rule: All CDL licensees with the Hazardous Materials endorsement (H or X) are required to appear in person to renew their Wyoming CDL licenses and present their TSA background check paperwork.Wyoming manual, section i.iv
  • Wyoming rule: Hazmat drivers failing to present a new background check will have their license expiration reduced from five years to the expiration of their current TSA check.Wyoming manual, section i.iv

Two Wyoming questions, answer shown

A driver transfers an out-of-state CDL with an H endorsement to Wyoming. What is required to keep the endorsement?

  1. Nothing beyond surrendering the old licence, since the endorsement carries over
  2. Passing Wyoming's hazmat written test and presenting TSA background check certification(correct answer)
  3. Retaking every CDL knowledge test, plus a new skills test in a placarded vehicle
  4. Completing a new TSA check only, since the old test result transfers to Wyoming

Out-of-state H holders must pass the hazmat written test before a Wyoming CDL is issued and present their TSA background check certification.

Handbook section i.iv

A Wyoming CDL holder renews a hazmat endorsement. When must the hazmat knowledge test be retaken?

  1. Never, once the TSA background check is current
  2. Only when transferring the CDL in from another state
  3. If the record shows no pass within the previous two years(correct answer)
  4. At every renewal, regardless of when it was last passed

Wyoming CDL holders retake the hazmat test when their record does not show a pass within the previous two years. Since February 7, 2022, first-time H applicants must also complete the ELDT hazmat module before testing.

Handbook section i.iii

A sample question

One example, answer shown. Practicing the rest happens in the app.

Except for bulk packaging, hazard classes listed in Table 2 require placards only when the total amount transported reaches:

  1. 2,205 pounds or more
  2. Any amount at all
  3. 1,001 pounds or more(correct answer)
  4. 500 pounds or more

Table 2 materials need placards once the aggregate gross weight, including packaging, reaches 1,001 pounds. Table 1 materials must be placarded in any amount.

Handbook section 9.2