 In 1999, NASA projected the cost of the X-38 program at US$96 million (Space Flight Advanced Projects funds) and the actual CRV program at US$1.1 billion (ISS Program funds).A year later, the X-38 costs had risen to US$124.3 million, with the increased cost being paid for by ISS funds.Part of the increased cost was the result of the need to operationally test the CRV with at least one, and possibly more, shuttle launches.