This document describes an architecture for protocols and services to support Unmanned Aircraft System Remote Identification and tracking (UAS RID), plus UAS-RID-related communications.  The architecture takes into account both current (including proposed) regulations and non-IETF technical standards. The architecture adheres to the requirements listed in the DRIP  Requirements document [RFC9153] and illustrates how all of them can be met, except for GEN-7 QoS, which is left for future work. The requirements document provides an extended introduction to the   problem space and use cases. Further, this architecture document frames the DRIP Entity Tag (DET) [RFC9374] within the architecture.