I am one of those doctors that examines CDLs.  I'm happy to hear an HPR contributor discuss commercial driving.  There is such a need for CDLs in the U.S. Having a CDL makes a person a much more valuable employee.  And, it's not all about long-haul trucking.  I see a lot of school bus drivers, ranchers with large equipment, propane delivery people, and those who work for the city or county.