Do you currently have car insurance? Insurance is mandatory to drive in California Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question How long is a CDL valid? Answers One year Two years Four years Five years Explanation In South Carolina, CDLs are valid for five years from the date of issuance. Take a FREE Practice Test Now This questions appears in the following tests: South Carolina Knowledge Test Class A ,