CDL Knowledge (written) Tests: Upon payment of all applicable fees, you have three attempts to pass the knowledge tests, within 12 months from the date of the application. For a multipart test, if you fail a section but pass another, you receive credit for the passed sections and do not have to repeat them. After three failed attempts to pass the remaining sections of the test, you must pay for a new application. If you also applied for endorsements, you have three attempts to pass each endorsement test.
CDL Skills Tests: After obtaining a CDL instruction permit, you may take the skills tests, consisting of a pretrip inspection, skills test and road test. Upon payment of the skills test fees, you have three attempts to pass the skills tests. The skills test has three parts. If you fail a section but pass another, you receive credit for the passed sections and do not have to repeat them. After three failed attempts to pass all sections of the test you must pay a new skills test fee, which will give you an additional three attempts.
NOTE: You will be allowed to pay for additional skills test attempts, provided your CDL instruction permit remains valid. If the permit has expired, all knowledge tests must be taken again to obtain a new permit before making another attempt at the skills tests.
The CDL instruction permit is valid for six months. It can be renewed one time, provided it has been fewer than 12 months from the initial application date.