From the document: "1. PURPOSE. In accordance with the authority in DoD Directive (DoDD) 5124.02 (Reference(a)), this instruction: a. Reissues DoD Instruction (DoDI) 1235.12 (Reference (b)) and incorporates and cancels DoDD 1235.10 (Reference (c)) to establish policy, assign responsibilities, and prescribe procedures for ordering units and members of the RC to active duty as an operational force to support the national defense strategy across the full spectrum of military functions. Such RC support includes, but is not limited to, sustained operational missions, emergent operations, contingency operations, and service during national emergencies or in time of war. Applicable access to the RC includes:"