This Rescue Field Operations Guide has been prepared to guide Department of Homeland Security (DHS)/Federal Emergency Management Agency (FEMA) Rescue personnel during Federal disaster response operations. The National Urban Search and Rescue (US&R) Response System provides for the coordination, development, and maintenance of the Federal effort with resources to locate, extricate, and provide immediate medical treatment to victims trapped in collapsed structures; and to conduct other life saving operations. This guide is designed to supplement the National US&R Response System Field Operations Guide, September 2003 (US&R-23-FG) which provides the US&R Response System methods of operation, organization, capabilities, and procedures in mobilization, on-site operations, and demobilization. This guide provides a detailed reference for performing Rescue Operations.