This OSTIV Passive Safety Standard (OPSS) has been developed within the Sailplane Development Panel (SDP), which is part of the International Scientific and Technical Soaring Organisation (Organisation Scientifique et Technique Internationale du Vol a Voile, in short OSTIV).
The OPSS is not a mandatory airworthiness requirement for sailplanes. Its purpose is to serve as a guideline for improving the safety of the sailplane occupants for organisations and persons who develop sailplanes.
Therefore, the OPSS is published so that everyone can use the information and proposed minimum standards for improved occupant safety against the level of safety as defined in current airworthiness requirement for sailplanes, e.g. CS-22.