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Open your study areaCDL · Endorsements
Prepanchor Endorsements Bundle for the CDL Knowledge Tests
Every Prepanchor CDL pack is knowledge-test practice, not Entry-Level Driver Training (ELDT). It doesn't replace the training some drivers must complete.
For drivers adding one or more endorsements, who want every endorsement test in one place.
- Tank vehicles
- Doubles and triples
- Passenger
- School bus
- Hazardous materials (the Hazmat pack)
What's inside
- 1,600+endorsement questions, hazmat included
- 100+endorsement mocks, hazmat included
- 100+placard and hazard-class flashcards
- 6page segregation cheat sheet (PDF)
Mocks follow Washington's published format: tank vehicles, doubles and triples, passenger and school bus are each 20 questions with 16 to pass, and hazmat is 30 with 24. Other states can differ, so check your state's commercial driver manual or licensing office. Each mock shows your score against the pass mark. It is not a prediction of an official score.
How the Tank Vehicles practice test works · How the Doubles and Triples practice test works · How the Passenger Vehicles practice test works · How the School Bus practice test works
Here is every part of the pack. Items with a lock open the moment you buy.
Practice questions
By section and topic, each with a worked explanation
1,600+ questions
Timed practice sets
Timed, in the test's own format
90+ sets
Hazmat Endorsement Pack
Hazardous materials questions and mocks, a placard and hazard-class deck, and a segregation cheat sheet.
950+ questions · 10+ sets
Practice questions950+ questions
- Hazardous Materials958 questionsPractice
Timed practice sets10+ sets
- Hazardous Materials practice test10+ different setsStart
Prepanchor Hazmat Segregation Cheat Sheet for CDL Knowledge Tests6 pages
Flashcards100+ cards
- Prepanchor Hazmat Placard Cards for the CDL Knowledge Test119 cardsStudy
Every count here comes from the pack's live content.
Try it before you buy
Everything together
Get this pack and everything else for $54.99
- Endorsements Bundle$24.99
- Class A Core Pack$39.99
- Air Brakes Drill$9.99
- Hazmat Endorsement PackIncluded
- Printable Cheat-Sheet Set$7.99
- Video Course$15
$97.96 if bought one by one, so the bundle saves $42.97. Buy the Endorsements Bundle now and its price comes off the bundle later.
Get the bundle- We fix it or refund itIf a pack doesn't work because of a problem on our side.
- Instant accessYour pack opens as soon as you pay.
- Independent publisherOur own questions and guides, not affiliated with any exam body.
- Secure checkoutPayments handled by Lemon Squeezy.
Questions
Does it include the Hazmat pack?
Yes, all of it: the questions, mocks, placard deck and segregation cheat sheet.
What do I get, and in what format?
Questions and mocks run in your browser and track your progress by endorsement. The flashcards work in your study area. The cheat sheet is a PDF you can print.
Is this CDL training?
No. It is knowledge-test practice, not Entry-Level Driver Training (ELDT). FMCSA's ELDT rules apply to anyone getting a Class A or Class B CDL for the first time, upgrading from Class B to Class A, or getting a school bus, passenger or hazmat endorsement for the first time. That training comes from a registered training provider. Who needs ELDT, on fmcsa.dot.gov.
Is the test the same in every state?
No. Each state gives its own knowledge tests. Our mocks follow the lengths and pass marks Washington publishes, and the topics come from state CDL manuals. Check your own state's manual and licensing office for its format.
How long do I keep access?
12 months of online access. The PDFs you download are yours to keep.
Which devices does it work on?
Any phone, tablet or computer with an up-to-date browser. Your progress follows your account.
Is it in the app too?
No. The pack works in the web browser on any phone, tablet or computer, so there's nothing to install.
Can I get a refund?
Every pack is digital and opens the moment you pay, so we don't refund a change of mind. If something doesn't work because of a problem on our side and we can't fix it, we refund you. Refunds never depend on your test result. How refunds work.
Is this official?
No. Prepanchor is a private company, not affiliated with FMCSA, any state DMV or any other licensing agency. We write our own questions. Explanations are based on state CDL manuals, in our own words.
Free from licensing agencies
Your state's commercial driver manual is free, and the knowledge tests come from it. Washington's is linked here as an example: get the one from your own state. FMCSA explains who needs ELDT.
- Washington's CDL knowledge tests, on dol.wa.gov checked 26 Oct 2026
- Washington's commercial driver guide, on dol.wa.gov checked 26 Oct 2026
- Who needs Entry-Level Driver Training (ELDT), on fmcsa.dot.gov checked 26 Oct 2026