At the beginning of each leg of the race, each team receives a cash allowance with their first clue, from which they must cover all expenses (food, transportation, lodging, attraction admission, and supplies) except for airfare, which is covered by a production-provided credit card (in the eighth season, this card could also be used to purchase gasoline). Allowance money is usually given in the same currency as the show's nation regardless of location; U.S. versions of the "Race" usually provide racers with U.S. dollars, (although in one exception, teams were given Vietnamese đồng at the start of a leg in Vietnam). The amount of money varies from leg to leg, and has ranged from hundreds of dollars to nothing. The teams are allowed to keep any unused money for future legs, barring certain penalties for finishing last.