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CDL Licensing

How to Get a CDL in Idaho

3 min read

Obtaining a Commercial Driver’s License (CDL) in Idaho is essential for those who wish to operate commercial motor vehicles such as semi-trucks, buses, and hazardous materials transport vehicles. The Idaho Transportation Department (ITD) oversees the CDL process, which includes several key steps: determining eligibility, passing required tests, and securing endorsements.

Determine Eligibility

Before applying for a CDL, you must meet the following eligibility requirements:

  • Be at least 18 years old to drive intrastate (within Idaho) and 21 years old to drive interstate (across state lines), transport hazardous materials, or drive a school bus.
  • Hold a valid Idaho non-commercial driver’s license.
  • Have a clean driving record with no serious traffic violations.

For specific age and residency criteria, refer to the guide on Idaho Driver’s License Age and Residency Requirements.

Prepare the Required Documents

Bring the following to your local DMV office:

  • Proof of identity and legal presence (e.g., passport, birth certificate)
  • Proof of Idaho residency
  • Your current Idaho driver’s license
  • Social Security card
  • Medical Examiner’s Certificate (DOT card)

For more details on acceptable documents, check What to Bring to the DMV for an Idaho License.

CDL Learner’s Permit

To get a CDL, you must first obtain a Commercial Learner’s Permit (CLP) by:

  1. Passing the written knowledge tests for the class of CDL and any desired endorsements.
  2. Holding the CLP for at least 14 days before taking the skills test.

The written tests can be prepared for using resources like the Idaho Written Test Preparation Guide.

CDL Knowledge and Skills Testing

You will need to pass:

  • General Knowledge Test: Required for all CDL applicants.
  • Air Brakes Test: Required if your vehicle uses air brakes.
  • Combination Vehicles Test: For Class A CDL applicants.
  • Endorsement Tests: Depending on the type of commercial driving, such as for tankers, doubles/triples, passenger transport, or hazardous materials.

After obtaining your CLP, schedule and pass the CDL skills test, which includes:

  • Pre-trip vehicle inspection
  • Basic vehicle control
  • On-road driving

To understand specific medical and testing standards, refer to Idaho CDL Medical and Testing Requirements.

CDL Endorsements and Restrictions

Certain jobs require CDL endorsements, which involve additional testing:

  • H: Hazardous Materials
  • N: Tank Vehicles
  • P: Passenger Transport
  • S: School Bus
  • T: Double/Triple Trailers
  • X: Combination of Tank Vehicle and Hazardous Materials

Each endorsement may also impose or remove restrictions. Detailed information is available in Idaho CDL Endorsements and Restrictions Explained.

Fees and Issuance

Fees vary based on the CDL class and endorsements. You can view a full breakdown at Idaho DMV Fees for 2025 Explained.

Once all tests are passed and documentation is verified, your CDL will be issued. You must carry your CDL at all times while operating a commercial vehicle.

Maintaining Your CDL

After obtaining your CDL, ensure you:

  • Keep your Medical Examiner’s Certificate current.
  • Renew your CDL before it expires.
  • Notify the ITD of any changes in your medical status or driving privileges.

Check renewal requirements at How to Renew Your Idaho Driver’s License. A CDL opens up various commercial driving opportunities, but it also comes with added responsibility and regulation. Following the proper steps ensures you stay compliant and road-ready in Idaho.