Object: Electronic Auction - Supply Management, Implementation And Operation Of A Computerized/Integrated System Using Postpaid Magnetic Tags/Cards, Preferably With Rfid Or Nfc Technology, Which Allows The Supply Of Fuels (Gasoline, Ethanol And Diesel Oil - Common And S10) And Simple And Complete Washing Through The Network Of Stations/Companies Accredited To Serve The Tre-Df Vehicle Fleet