Choose a test to practice for your CLP (Permit). For CDL renewals, you may be asked to take the following tests: Class A: General Knowledge + Combination + Air Brakes + Basic Car Test + Road Signs Class B: General Knowledge + Air Brakes + Basic Car Test + Road Signs You can renew your CDL up to 1 year in advance. Renew early. Do not wait until the last minute. Good luck 🙂 Or Call Angelika for help.