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CDL Requirements | DMV Locations Fees | Forms | FAQs | FREE CDL INFO

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CDL Info | CDL Requirements

Click on your state of residence to find official answers to your CDL questions -

  • What are the CDL Requirements
  • How to get a CDL
  • How to get a CDL HazMat (Hazardous Materials Endorsement) Permit
  • What is the difference between Interstate and Intrastate?
  • How to get a CDL HazMat (Hazardous Materials Endorsement) Permit
  • How to get a School Bus CDL
  • How much does a CDL cost?
  • Where is my nearest DMV CDL office?
  • Where can I find CDL (commercial drivers license) forms?

. . . and answers to many more CDL questions!

Quickly access the most complete and accurate Official CDL Information

 CDL Information
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Access Official Federal CDL Medical Requirements Info

Access Official Federal CDL Hazardous Materials Info

Classes of CDL and Required Tests

CDL Class Tests Required Possible Endorsements and Required Tests
Class A
(Combination
vehicle endorsement required)

General Knowledge Written Exam

Combination Endorsement Written Exam

Road Exam

H - Hazardous Materials Written Exam
N - Tank Vehicles Written Exam
P - Passenger Transport Written and Road Exam
T - Doubles/Triples Written Exam
X - HazMat and Tank Vehicles Written Exam
L - Air Brakes Written and Road Exam
S - School Bus Written and Road Exam
Class B

General Knowledge Written Exam

Road Exam

H - Hazardous Materials Written Exam
N - Tank Vehicles Written Exam
P - Passenger Transport Written and Road Exam
X - HazMat and Tank Vehicles Written Exam
L - Air Brakes Written and Road Exam
S - School Bus Written and Road Exam
Class C

General Knowledge Written Exam

Road Exam

Note: If upgrading to a Class C from a Class D, no road test is required UNLESS the endorsement requires one.
H - Hazardous Materials Written Exam
N - Tank Vehicles Written Exam
P - Passenger Transport Written and Road Exam
X - HazMat and Tank Vehicles Written Exam
L - Air Brakes Written and Road Exam
S - School Bus Written and Road Exam

Texas CDL Endorsements

Exam Time Allowed (Minutes) # of Questions on Exam # of Correct Answers Needed to Pass
General Knowledge 60 50 40
Air Brakes 25 25 20
HazMat 30 30 24
Tank 20 20 16
Passenger 20 20 16
Doubles/Triples 20 20 16
Combination Vehicles 20 20 16
School Bus 20 20 16