What license do you need to drive a garbage truck?

If it's under a Gross Vehicle Weight Rating of 26,000 lbs., whatever the standard driver's license class is for your state, although you will need a DOT medical card. If it's a single vehicle with a Gross Vehicle Weight Rating in excess of 26,000 lbs., you'll need a Class B CDL. If it's a combination of vehicles with a Gross Combination Weight Rating in excess of 26,000 lbs., and the vehicle in tow has a Gross Vehicle Weight Rating in excess of 10,000 lbs., you'll need a Class A CDL.