200+ Free Ohio CDL Hazmat Practice Questions
Pass your Ohio CDL Hazardous Materials Endorsement Test exam on the first try — instant access, no signup required.
What is a good security practice at fuel or rest stops with hazmat cargo?
Explore More CDL Hazardous Materials Endorsement Test
Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.
More From This Family
Videos and articles for deeper review.
Key Facts: Ohio CDL Hazmat Exam
80%
Minimum CDL knowledge-test passing score
49 CFR 383.135
H
Ohio endorsement for placard-required hazardous materials
Ohio BMV
X
Ohio combined tank vehicle and hazmat endorsement
Ohio BMV
ELDT
Required before first-time H endorsement knowledge test
FMCSA
TSA
Threat assessment required before HME issuance
Ohio BMV / TSA
$85.25
TSA HME new and renewing applicant fee effective January 1, 2025
TSA
Ohio drivers need an H endorsement, or X for combined tank and hazmat authority, to haul hazardous materials in amounts requiring placards. Ohio BMV sends CDL applicants to driver exam stations for knowledge tests and states a TSA HME threat assessment must be completed before the hazardous materials endorsement can be issued. FMCSA requires first-time H endorsement applicants to complete ELDT before the H knowledge test, and federal CDL rules require at least 80% correct on knowledge tests.
Sample Ohio CDL Hazmat Practice Questions
Try these sample questions to test your Ohio CDL Hazmat exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 200+ question experience with AI tutoring.
1In Ohio, what CDL endorsement is needed to transport hazardous materials in amounts requiring placards?
2What does an X endorsement authorize when added to an Ohio CDL?
3Which document must be readily available to identify hazardous materials after a crash or inspection?
4What is the correct basic description order for most hazardous materials on a shipping paper?
5On a shipping paper, what does UN1203 identify?
6Who is primarily responsible for preparing correct shipping papers before offering a hazmat shipment?
7Where should hazmat shipping papers be when the driver is at the wheel?
8What does a packing group generally communicate?
9Which hazard class covers explosives?
10Which hazard class covers flammable liquids such as gasoline?
About the Ohio CDL Hazmat Exam
The Ohio CDL Hazardous Materials Endorsement Test is the written knowledge exam for Ohio commercial drivers who need an H endorsement, or an X endorsement when combined with tank vehicle authority, to transport hazardous materials in quantities requiring placards. Ohio BMV lists H as the hazmat endorsement and X as tanker/hazmat, directs CDL applicants to Ohio driver exam stations for knowledge testing, and requires completion of the TSA Hazardous Materials Endorsement Threat Assessment Program before the hazmat endorsement can be issued. First-time H endorsement applicants must complete FMCSA Entry-Level Driver Training before taking the H knowledge test. The operational test content follows the Ohio Commercial Driver License Manual and federal hazardous materials rules for shipping papers, emergency response information, placards, package markings and labels, hazard classes, loading and unloading, segregation, routing, parking, and security awareness.
Assessment
Multiple-choice Ohio Hazmat endorsement knowledge test covering hazardous materials communication, placards, labels, markings, hazard classes, loading and unloading, segregation, emergencies, security awareness, routing, parking, and endorsement rules.
Time Limit
Ohio BMV does not publish a separate public time limit for the Hazmat endorsement knowledge test; Ohio publishes separate CDL skills-test time limits
Passing Score
At least 80% correct on each CDL knowledge test under 49 CFR 383.135
Exam Fee
$31.50 Ohio CDL temporary permit; $46.50 first 4-year CDL or $92.00 first 8-year CDL; TSA HME threat assessment fee paid separately (Ohio Bureau of Motor Vehicles under FMCSA, TSA, and DOT hazardous materials rules)
Ohio CDL Hazmat Exam Content Outline
Shipping Papers and Emergency Information
Basic description order, proper shipping names, identification numbers, packing groups, reportable quantities, technical names, emergency phone numbers, emergency response information, and required paper location.
Placards, Markings, and Labels
Table 1 and Table 2 placarding, 1,001-pound aggregate threshold concepts, four-side display, DANGEROUS placard limits, package labels, subsidiary hazards, orientation arrows, and residue issues.
Hazard Classes and Identification
Classes 1 through 9, gas divisions, flammable liquid and solid hazards, oxidizers, organic peroxides, toxic substances, radioactive materials, corrosives, miscellaneous materials, and packing group severity.
Loading, Unloading, and Segregation
Package condition, bracing and securement, engine and smoking restrictions, cargo tank attendance, incompatible materials, foodstuff contamination prevention, and segregation table symbols.
Emergency Response and Communication
Leaks, spills, fires, tire overheating, warning devices, uphill and upwind approach, information for responders, emergency response information, and when not to improvise cleanup.
Security, Routing, Parking, and Ohio Context
Suspicious activity, information control, security plans, route restrictions, parking and attendance, Ohio H/X endorsements, TSA HME threat assessment, and first-time H endorsement ELDT.
How to Pass the Ohio CDL Hazmat Exam
What You Need to Know
- Passing score: At least 80% correct on each CDL knowledge test under 49 CFR 383.135
- Assessment: Multiple-choice Ohio Hazmat endorsement knowledge test covering hazardous materials communication, placards, labels, markings, hazard classes, loading and unloading, segregation, emergencies, security awareness, routing, parking, and endorsement rules.
- Time limit: Ohio BMV does not publish a separate public time limit for the Hazmat endorsement knowledge test; Ohio publishes separate CDL skills-test time limits
- Exam fee: $31.50 Ohio CDL temporary permit; $46.50 first 4-year CDL or $92.00 first 8-year CDL; TSA HME threat assessment fee paid separately
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
Ohio CDL Hazmat Study Tips from Top Performers
Frequently Asked Questions
What score do I need to pass the Ohio CDL Hazmat test?
Federal CDL rules require at least 80% correct on each CDL knowledge test. Ohio administers endorsement knowledge testing under the CDL framework.
Where do I take the Ohio Hazmat endorsement knowledge test?
Ohio BMV directs CDL applicants to any Ohio driver exam station for knowledge testing and to deputy registrar license agencies for issuance.
Do I need ELDT before taking the Ohio Hazmat knowledge test?
Yes, if you are applying for the hazardous materials endorsement for the first time. FMCSA requires applicable ELDT from a registered training provider before the H knowledge test.
Do I need a TSA background check for an Ohio H endorsement?
Yes. Ohio BMV states that drivers must complete TSA Hazardous Materials Endorsement Threat Assessment Program requirements before the hazmat endorsement can be issued.
What is the difference between H and X endorsements in Ohio?
Ohio BMV lists H for hazardous materials and X for combined tank vehicle and hazardous materials authority.
How much does the Ohio CDL Hazmat process cost?
Ohio BMV lists CDL credential fees such as a $31.50 CDL temporary permit and $46.50 first 4-year CDL or $92.00 first 8-year CDL. TSA HME threat assessment and any ELDT provider fees are separate.