This document includes the requirements for UTM service providers in the context of UAS Traffic Management (alias U-Space) for Unmanned Aircraft Systems (UAS) and other equipped airspace users. This document covers minimum safety, quality, security and privacy requirements for SPs of safety critical and safety related UTM services and of operation support services. This document, in addition, specifies technical requirements enabling the Service Provider of Aeronautical Information Management for UAS (AIMU), UTM users and other service providers (SPs) to exchange digital data and information. Where appropriate, this document refers to other standards developed by ISO TC 20/SC 16.