The school was licensed by the state to test commercial drivers.
That's why we began an effort to establish a national commercial driver's license.
Don't plan to drive more than 10 hours, the legal limit for commercial drivers.
After they let me go I decided to get my commercial driver's license.
However, these otherwise commercial drivers ($20) support a lot of printers.
Some of his colleagues, he found out, did not even have commercial driver's licenses.
It's estimated that about four million commercial drivers will be affected by the rule.
I took the test and I have my new commercial driver's license.
Candidates could earn up to $25 an hour as commercial drivers.
He got a series of traffic tickets and lost his commercial driver's license.