Check Out New Options Available at Driver Services Online August 13, 2020 14:16 Updated Did you know - we have enhanced our available online services? For added convenience you may: ~ Renew your CDL; ~ Order a Duplicate CDL; and ~ Submit your Self-Certification Affidavit and Medical Exam Certificate online at: Driver Services Online Tennessee Department of Safety Related articles Documents needed for medical certification processing How Do I Verify The Status of My CDL License? Who is responsible for notifying the State that I have a valid medical certificate? How do I know the CDL office received my application? What is the CDL customer service phone number?