CDL instruction permit (CDIP)

Who can apply for a CDIP

Any driver over 18 years of age with a valid Washington driver license can apply for a commercial driver instruction permit (CDIP). You must be at least 21 years of age to operate commercial vehicles from state to state (interstate).

How to apply for a CDIP

To get a CDIP, you must pass a knowledge test. You may apply for a CDIP at any driver licensing office that offers knowledge testing (call to find out). Bring the following with you:

• Your current license.
• Your Social Security number, which will be used for identification purposes. This is a mandatory requirement under federal and state law. (49 USC 31308, RCW 46.25.070).
• The application fee.

How long a CDIP is valid

The CDIP is valid for 6 months and may be renewed only once.

CDIP driving restrictions

After you have been issued a CDIP:

• You must be accompanied by another driver holding a CDL when you drive a commercial vehicle. The driver who accompanies you must:
  • hold a CDL that is valid for the type of commercial vehicle you are driving.
  • have at least 2 years’ experience driving the type of commercial vehicle you are driving.
  • have at least 5 years’ total driving experience.
  • occupy the seat beside you for the purpose of giving instruction.
• You cannot operate any commercial vehicle classified or placarded for hazardous materials.