Study Hazmat and Tanker topics with 510 questions, daily plans and saved practice. Eligible monthly subscribers get a 3-day free trial. Study content is in English.
Prepare for CDL Hazmat and Tanker knowledge topics with focused practice and a daily study plan.
PRACTICE AND REVIEW
Work through 510 questions covering hazardous-material classes, placards, shipping papers, loading, segregation, emergencies and tanker topics. Resume unfinished practice with saved answers and order. Review explanations and references, bookmark questions and focus on weak areas.
BUILD A DAILY ROUTINE
Use 17 written guides and 63 flashcards across 14 decks. Open study activities directly from your plan. Timed topic sets and mixed practice help you review; their lengths and timing are study settings, not official state exam specifications.
STUDY TOOLS AND OFFICIAL RESOURCES
Explore placarding exercises, hazard-class references and study calculations. Learn how to consult the official ERG and FMCSA routing resources. Tools are educational aids; they do not approve shipments, routes, loading decisions or emergency responses.
TRY FREE, THEN CHOOSE
No login is required. Free access includes five practice answers per day, a study plan, three guides, one flashcard deck and the hazard-class guide. Pro unlocks unlimited practice, all guides and decks, timed study modes and premium tools.
Monthly, annual and lifetime access are available. Eligible new subscribers receive a three-day free trial on the monthly plan. Annual and lifetime plans have no trial. Storefront prices and renewal terms appear before purchase. Subscriptions renew automatically unless canceled. Manage or cancel through your App Store account and restore purchases in the app.
Independent exam preparation; not affiliated with or endorsed by DOT, FMCSA, PHMSA, TSA or any state licensing agency. This app does not provide ELDT certification or satisfy training, security assessment or licensing requirements. Consult your current state CDL manual and required training provider. Technical questions, guides and tools are in English; app navigation supports Spanish.
Privacy: https://www.voltexam.com/privacy
Terms: https://www.voltexam.com/terms
Outstanding and very awesome tool prepping for renewal
CDL Hazmat Prep 3.0 makes daily study easier:
• Resume unfinished practice with saved question order and answers.
• Open practice, guides, flashcards and mock practice directly from your study plan.
• Updated question-bank synchronization preserves matching history and bookmarks.
• See earlier question history separately from active coverage.
• Stable answer choices and more reliable timing in Speed Round.
• Review explanations and references during timed mock practice.
• Clearer free access, Pro features and eligible monthly free-trial information.
• Faster splash screen with reduced-motion support.
• Revised ERG and route resources link to official information.
Independent study support. Technical content is in English. State exam requirements vary; this app does not provide ELDT certification.
Version 3.0
The developer, Deeun Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Deeun Inc.
Size
7.8 MB
Category
Education
Compatibility
Requires iOS 17.0 or later.
iPhone Requires iOS 17.0 or later.
Mac Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
