Study for the US CDL Hazardous Materials (HazMat) endorsement knowledge test. Original practice questions written from the publicly available FMCSA CDL manual and the federal Hazardous Materials Regulations (49 CFR), with a clear explanation for every answer. WHAT YOU GET - The 9 hazard classes and divisions, shipping papers, placarding rules, loading and segregation, bulk packaging and cargo tanks, driving and parking rules, emergencies and the Emergency Response Guidebook, and HazMat security. - A clear explanation citing the rule for every question. - Timed practice tests that mirror the real endorsement test. - Progress saved on your device — no sign-up, works offline. ORIGINAL & SAFE Every question is written for this app from the public CDL manual and federal regulations. Nothing is copied from any real state exam, test pool or third-party question bank. FREE TO START Practice free, then a single one-time purchase unlocks the full question bank and unlimited timed tests — no ads, no subscription, no account. NOTE Unofficial study and practice app. Not affiliated with, endorsed by, or sponsored by FMCSA, PHMSA, TSA, any state DMV or any government agency. For learning only; does not guarantee passing any exam.
