How long is a CDL valid after medical card expires in CA?

Answer:
You will not have your CDL revoked, but the moment your medical card expires, you're prohibited from operating a CMV (or any commercial vehicle with a GVWR of more than 10,000 lbs., for that matter) until you get a new medical card. Additionally, you won't be able to renew your CDL without a valid and current medical card.
First answer by BurningSaviour. Last edit by BurningSaviour. Contributor trust: 231 [recommend contributor recommended]. Question popularity: 2 [recommend question].