Details.
Electronic Transportation Vouchers can be redeemed while making a reservation on Amtrak.com by selecting Transportation Voucher as the form of payment. Multiple vouchers may be applied to a reservation, and vouchers may be used across multiple reservations. Transportation Vouchers can only be used once, and any unused value is forfeited. The person named on the voucher must be one of the traveling passengers, and the reservation name must exactly match the voucher name. Transportation Vouchers expire one year from the date they are issued.