General Knowledge
Core rules, safe operation and regulations
50-question test • Unlimited attemptsNationwide CDL study resources Practice content—not an official state exam
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Study New York →CDL PRACTICE CENTER
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Air Brakes
Systems, inspections and stopping distance
25-question test • Unlimited attemptsCombination
Coupling, trailers and combination safety
20-question test • Unlimited attemptsHazMat
Security, placards and safe transport
20-question test • Unlimited attemptsPassenger
Passenger safety and vehicle operation
20-question test • Unlimited attemptsSchool Bus
Student loading, zones and emergencies
20-question test • Unlimited attemptsTanker
Liquid surge and tanker control
20-question test • Unlimited attemptsDoubles / Triples
Multiple-trailer inspection and handling
20-question test • Unlimited attemptsPre-Trip
Inspection sequence and exam language
20-question test • Unlimited attemptsELDT Theory
Complete theory-module preparation
20-question test • Unlimited attemptsONLINE ENTRY-LEVEL DRIVER TRAINING
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Complete your required ELDT theory training online through CDL Compass. Select the course that matches your license or endorsement goal.
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A
COMMERCIAL DRIVER TRAINING
BELDT Class A
Required theory training for first-time Class A CDL applicants preparing to operate combination vehicles.
Start Class A course →STRAIGHT TRUCK & BUS
HELDT Class B
Online theory training for first-time Class B CDL applicants operating qualifying single vehicles.
Start Class B course →ENDORSEMENT TRAINING
ELDT HazMat
Required theory training for drivers applying for a hazardous materials endorsement.
Start HazMat course →Prepare for the rules where you live
Open a state guide for CDL requirements, ELDT information, handbook guidance and practice recommendations.
Browse available state guidesCDL RESOURCE CENTER
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PRONTOCDL LIBRARY
CDL Glossary
Understand essential CDL, vehicle and trucking terminology.
Open glossary →FREE LEARNINGCDL Study Guides
Review focused summaries for major CDL and ELDT subjects.
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