You must meet the minimum age restrictions, present a valid driver's license and possess an acceptable charge card in your name. The following terms apply to the rental of this type of vehicle, in addition to those set forth in the Rental Agreement.Please read before booking your rental. Complete them and pay the Tax due. The monthly return form is available at the Tax Collector's Office, Allegheny County Courthouse,. Do not sign a lease until all blanks are filled in. Make sure you get a copy of the whole lease at signing and keep your copy in a safe place. No fee applies to additional drivers in the categories above, and they don't have to fill out extra paperwork to drive the rental car. Confused about all the car rental fees when you check out? Visit our page to learn more about all the fees that may apply to your Thrifty car rental.