"Purpose: The Catastrophic Incident Annex to the National Response Framework (NRF-CIA) establishes the context and overarching strategy for implementing and coordinating an accelerated, proactive national response to a catastrophic incident. A more detailed and operationally specific National Response Framework Catastrophic Incident Supplement (NRFCIS) is published independently of the NRF and annexes. "Scope.... Recognizing that Federal and/or national resources are required to augment overwhelmed State, tribal, and local response efforts, the NRF-CIA establishes protocols to preidentify and rapidly deploy key essential resources (e.g., medical teams, urban search and rescue teams, transportable shelters, medical and equipment caches, etc.) that are expected to be urgently needed/required to save lives and contain incidents. Accordingly, upon designation by the Secretary of Homeland Security of a catastrophic incident, Federal resources, organized into incident-specific "packages," deploy in accordance with the NRF-CIS and in coordination with the affected State and incident command structure. "Where State, tribal, or local authorities are unable to establish or maintain an effective incident command structure due to catastrophic conditions, the Federal Government, at the direction of the Secretary of Homeland Security may establish a unified command structure to save lives, protect property, secure critical infrastructure/key resources, contain the event, and protect national security. The Federal Government shall transition to its normal role supporting incident command through State, tribal, or local authorities when their command is reestablished". (DHS, National Response Framework, Catastrophic Incident Annex, Sep.10, 2007 Draft, p. 1).