Clear help hub

CDL FAQ

Find clear answers about CDL classes, endorsements, permit prep, online theory, and what to do next with CDL2GO.

Compare CDL ClassesReview EndorsementsPlan Your Next Step

FAQ guide

Start with CDL classes

Class AClass B

Then review endorsements

HazmatPassengerSchool Bus

Other endorsements to compare

TankerDoubles/Triples

Preparation and training help: ELDT, Preparation, and Online Training help explain what to review next.

How to use this FAQ

Find the answer that matches your CDL question.

Start with CDL classes first. Endorsements may apply depending on the vehicle, passengers, or cargo involved in your CDL goal. ELDT, online training, and preparation help explain what to review before moving forward. The goal is to reduce confusion before you choose the next step.

CDL-first clarity

Start With Your CDL Class

Class A and Class B are usually the first choices to compare.

Endorsement clarity

Know Which Endorsements May Apply

HazMat, Passenger, and School Bus may involve different requirements than Tanker or Doubles/Triples.

Next-step clarity

Get Ready For What Comes Next

ELDT, preparation, and online training help you prepare after you understand your CDL goal.

Questions Organized by Student Need

Start with the basics, then move into CDL classes, preparation, and endorsements.

Use these groups to find answers about CDL classes, preparation, endorsements, ELDT, company programs, or course support.

CDL question support

Start With Class A, Class B, Or B-to-A.

Most students begin by comparing Class A, Class B, or B-to-A before reviewing endorsements or preparation questions.

Illustrated Class A CDL route icon used in the CDL2GO onboarding system.

Class A CDL

Class A CDL questions

Class A may fit drivers considering tractor-trailers or combination vehicles.

Learn About Class A CDL

Illustrated Class B CDL route icon used in the CDL2GO onboarding system.

Class B CDL

Class B CDL questions

Class B may fit straight trucks, buses, utility vehicles, or focused commercial driving goals.

Learn About Class B CDL

Illustrated B-to-A CDL upgrade icon used in the CDL2GO onboarding system.

B-to-A upgrade

B-to-A upgrade questions

B-to-A helps Class B drivers understand what changes when they move toward Class A.

Learn About B-to-A Upgrade

Endorsement help

Compare CDL endorsements.

Review HazMat, Passenger, School Bus, Tanker, and Doubles/Triples to see which endorsement may apply to your goal.

Illustrated Hazmat endorsement icon used in the CDL2GO onboarding system.

HazMat questions

HazMat endorsement

HazMat may apply when your CDL goal involves hazardous materials.

Learn About HazMat

Illustrated Passenger endorsement icon used in the CDL2GO onboarding system.

Passenger questions

Passenger endorsement

Passenger may apply when your goal involves transporting passengers.

Learn About Passenger Endorsement

Illustrated School Bus endorsement icon used in the CDL2GO onboarding system.

School Bus questions

School Bus endorsement

School Bus may apply when your goal involves student transportation.

Learn About School Bus Endorsement

Additional endorsements

When Tanker Or Doubles/Triples May Apply

Review these questions if your CDL goal involves liquid cargo or multi-trailer combinations.

Tanker questions

Tanker endorsement

Tanker may apply when your goal involves liquid cargo.

Learn About Tanker Endorsement

Doubles/Triples questions

Doubles & Triples endorsement

Doubles & Triples may apply when your goal involves multi-trailer combinations.

Learn About Doubles & Triples

CDL preparation help

Get ready for your next CDL step.

ELDT, online training, and CDL preparation can help you get ready for the next step. They are most useful after you have a clearer idea of your CDL class or endorsement goal.

ELDT Theory

Understand ELDT Theory

ELDT theory explains the online classroom-style requirement that may apply to your CDL or endorsement goal.

Learn About ELDT Theory

Online theory

Review Online CDL Training

Online CDL training helps you complete theory before moving toward any required hands-on training separately.

Review CDL Online Training

Preparation

Review CDL Preparation

CDL Preparation helps you understand where to start before choosing a training option.

Review CDL Preparation

FAQ guide

Use the FAQ to find your next CDL answer.

Start with your CDL class, then review endorsements, preparation, online training, or ELDT theory as needed.

1. Choose CDL classClass A or Class B.
2. Choose a topicCDL class, endorsement, or preparation question.
3. Find the best matchWhich answer best matches your goal.
4. Review next stepsELDT, online training, preparation.
5. Keep movingChoose what to review next.

Clear CDL answers

CDL questions are easier when the next step is clear.

The FAQ hub helps you compare CDL classes, endorsements, preparation, online training, and training questions.

CDL questions

CDL classes stay first

Start with the CDL class or training question that matches your goal.

Endorsement questions

Endorsements are clearer when your CDL class is clear

Endorsements are easier to compare once you understand your CDL class.

Helpful next steps

Use preparation resources when you are ready for the next step

Preparation resources help you study, compare options, and decide what to review next.

Next clear step

Start with the CDL class, then review endorsements when needed.

Use the FAQ hub to understand CDL classes, endorsements, preparation, online training, and next steps.

FAQ section

Helpful answers for common CDL questions.

Use these questions to review CDL classes, endorsements, preparation, ELDT theory, company programs, course support, and next steps.

CDL2GO FAQs

ELDT Theory
Start Here
CDL License Types
CDL Preparation and Practice Tests
Endorsements
Company Programs / Group Support
Contact / Course Support
ELDT Theory
Start Here
CDL License Types
CDL Preparation and Practice Tests
Endorsements
Company Programs / Group Support
Contact / Course Support