To be eligible for flight on the Space Shuttle, non-U.S. government, reimbursable payloads must meet criteria for use of the Shuttle established by U.S. law and public policy. The NASA Administrator will determine and/or certify the compliance of the payload with these criteria. To qualify for flight on the Space Shuttle, non-U.S. government, reimbursable payloads must require the unique capabilities of the Shuttle, or be important for either national security or foreign policy purposes.