Medical Safety and Liability Issues for Short-Duration Commercial Orbital Space Flights, Published 2009, 32 pages. The objective of this report is to identify and prioritize medical screening considerations in order to preserve the health and promote the safety of paying passengers who intend to participate in short-duration flights (up to 4 weeks) onboard commercial orbital space vehicles. This report is intended to provide general medical guidance to the operators of orbital manned commercial space vehicles for the medical assessment of prospective passengers. More specifically, this report is intended for medical personnel employed by commercial space vehicle operators. Physicians supported by other appropriate health professionals who are trained and experienced in the concepts of aerospace medicine should perform the medical assessments of all prospective space passengers. In view of the wide variety of possible approaches that can be used to design and operate orbital manned commercial space vehicles in the foreseeable future, the IAA medical safety considerations are generic in scope and are based on current analysis of physiological and pathological changes that may occur as a result of human exposure to operational and environmental risk factors present during orbital space flight.