This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:F3479-20 INTERNATIONAL Standard Specification for Failure Tolerance for Occupant Safety of Suborbital Vehicles1 This standard is issued under the fixed designation F3479:the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon (e)indicates an editorial change since the last revision or reapproval. 1.Scope 2.2 RTCA Standards: 1.1 This specification provides system safety engineering RTCA DO-178 Software Considerations in Airborne Sys- and failure tolerance requirements applicable to occupant tems and Equipment Certification RTCA DO-278 Software Integrity Assurance Considerations safety for suborbital vehicles. for Communication Navigation Surveillance and Air 1.2 This specification is not intended to provide failure Traffic Management (CNS/ATM)Systems tolerance requirements for conditions that do not impact 2.3 SAE Standards:4 occupant safety.For example conditions resulting in facility SAE ARP 4754A Guidelines for Development of Civil damage vehicle damage loss of mission objectives or a...