Last name: Kiefer. This interesting and unusual surname is of Germanic origin, and is a metonymic occupational name for a maker or repairer of wooden vessels such as barrels, tubs, casks and vats. The derivation is from the German kief(e), kufe, itself coming from the Old High German kuofa, barrel.
Commercial Driver's License (CDL) A CDL is required to drive any of the following vehicles: Any combination of vehicles with a gross combined weight rating (GCWR) of 26,001 or more pounds, providing the gross vehicle weight rating (GVWR) of the vehicle being towed is in excess of 10,000 pounds.
The gross vehicle rating or GVWR, which determines the maximum allowable weight for pickup trucks in the U.S., indicates that a half-ton pickup truck averages 8,500 pounds or less. Modern trucks have a higher average, with most of them weighing between 5,000 and 9,900 pounds according to their make and model. A three-quarter-ton truck can carry between 8,500 to 9,900 pounds, while a one-ton truck can likely weigh in over 9,900 pounds.