Service Access Point The point at which the services of an OSI layer are made available to the next higher layer The SAP is named according to the layer providing the services, e g , Transport services are provided at a Transport SAP (TSAP) at the top of the Transport Layer
Strategic Action Programme SMAP: Short and Medium-Term Priority Environmental Action Programme SPA and BD Protocol: Specially Protected Areas and Biological Diversity Protocol SPA/RAC: Specially Protected Areas Regional Activity Centre STAP: Scientific and Technical Advisors Panel
A secondary capability of stereo television transmissions SAP permits the delivery of a second soundtrack for enhanced services such as second language It requires a SAP decoder in the viewer's television receiver