CDL Practice Test Center for Professional Drivers & Driver Trainees

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Information for the Commercial Drivers License ( CDL ) Tests
General Knowledge Test - Must be taken and passed by all CDL applicants no matter what class of CDL or type of endorsement's are needed. Air Brakes Test - Must be taken and passed if any vehicle you drive has air brakes. Combination Vehicles Test - Must be taken and passed if you drive combination vehicles requiring a Class "A" CDL. Passenger Transport (P) Test - Must be taken and passed by all bus driver applicants. An additional written test may be required if transporting children to and from school. Hazardous Materials (H) Test - Must be taken and passed if you transport hazardous materials requiring "placarding". A threat assessment (background check) is also required every time you renew your license. You will be required to take the hazmat test and do a background check. Threat assessment information (background check) For most States use hazprints.com All others are listed below. The 13 States listed below do NOT use HAZPRINTS.COM Click on your State below for more information. Florida, Indiana, Kentucky, Maryland, Mississippi, New Mexico, New York, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, Wisconsin Doubles & Triples (T) Test - Must be taken and passed if you pull double or triple trailers. Tanker (N) Test - Must be taken and passed if you drive a "tank" with a capacity of more than 1000 gallons.

Information for the Commercial Drivers License ( CDL ) Tests

General Knowledge Test - Must be taken and passed by all CDL applicants
no matter what class of CDL or type of endorsement's are needed.
Air Brakes Test - Must be taken and passed if any vehicle you drive has air brakes.
Combination Vehicles Test - Must be taken and passed if you drive combination vehicles
requiring a Class "A" CDL.
Passenger Transport (P) Test - Must be taken and passed by all bus driver applicants.
An additional written test may be required if transporting children to and from school.
Hazardous Materials (H) Test - Must be taken and passed if you transport hazardous materials
requiring "placarding". A threat assessment (background check) is also required every time
you renew your license. You will be required to take the hazmat test and do a background check.

Threat assessment information (background check)
For most States use hazprints.com All others are listed below.
The 13 States listed below do NOT use HAZPRINTS.COM
Click on your State below for more information.
Florida, Indiana, Kentucky, Maryland, Mississippi, New Mexico,
New York, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, Wisconsin

Doubles & Triples (T) Test - Must be taken and passed if you pull double or triple trailers.
Tanker (N) Test - Must be taken and passed if you drive a "tank" with a capacity of more than 1000 gallons.

click here to go to the hazmat test home page

Obtaining a CDL Permit and License

The following chart lists the Commercial Driver License classes,
 endorsements, and testing requirements. There are a number of
 endorsements which require a written exam but not a road test.

CDL Class

Tests Required

Possible Endorsements & Required Tests

Class A
CDL

General Knowledge Written Exam

Combination Endorsement Written Exam

Air Brake Exam

Road Exam which includes pre-trip inspection of the tractor & trailer

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

Class B
CDL

General Knowledge Written Exam

Road Exam

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

Class C
CDL

General Knowledge Written Exam

Road Exam

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

Links to your State's online DOT CDL handbook.

Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Indiana Iowa Illinois Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin