My CDL has expired but I am no longer working. Do I need to get a regular drivers license?
You must have a VALID driver's license to drive whatever you're driving. It is simpler and less costly to get a class C license if you no longer need a CDL., otherwise, renew your CDL you're already qualified for.
Only if you intend to continue driving.
Your CDL is your license. Do you need to? No you don't need to. You can continue to drive on an expired license as long as you want to