Pictogramme of hierarchy - people on a ladder. A hierarchy (from the Greek hierarchia, rule of a high priest, from hierarkhes, leader of sacred rites) is an arrangement of items (objects, names, values, categories, etc.) in which the items are represented as being above, below, or at the same level as one another.
Budget Car Rental Discounts Available for Anyone. You may also be interested in these additional Car Rental Discount Offers from several national car rental companies. Take advantage of these Budget car rental promotions when you use your Discover credit card or book your car rental online from Budget.
Tip. 1  Some rental-car companies allow drivers under age 25 to be listed as an additional driver on the contract without paying the underage driver fee. 2  You will need to show your driver's license and a credit card in your name.3  Most car-rental companies require renters to be at least 21 years old. In addition, if you are under age 21, you have to book your rental car directly with the branch, not through the online system or central reservation desk. 2  Some locally owned rental-car companies will rent to underage drivers without a fee. 3  Call agencies in your area to determine their policies.