This document defines a set of standard application layer interfaces called JAUS Mission Spooling Services. JAUS Services provide the means for software entities in an unmanned system or system of unmanned systems to communicate and coordinate their activities. The Mission Spooling Services represent the platform-independent capabilities commonly found across all domains and types of unmanned systems. At present@ 1 service is defined in this document (more services are planned for future versions of this document): ? Mission Spooler: Stores mission plans@ coordinates mission plans@ and parcels out elements of the mission plan for execution The Mission Spooler service is described by a JAUS Service Definition (JSD) which specifies the message set and protocol required for compliance. The JSD is fully compliant with the JAUS Service Interface Definition Language [JSIDL]. Purpose The purpose of this document is to facilitate interoperation of unmanned vehicle systems@ subsystems@ and payloads by standardization of the message set and associated protocol with regard to the planning and execution of missions@ tasks and activities.