Book excerpt: "The purpose of this report is to document the response to the oil spill that resulted from the explosion on the Deepwater Horizon mobile offshore drilling unit on April 20, 2010. On scene coordinator report, Deepwater Horizon oil spill, submitted to the National Response Team, September 2010. On November 18, 2010, the National Response Team (NRT) requested submission of an On-Scene Coordinator (OSC) report for the Deepwater Horizon spill to the NRT Response Committee, pursuant to the National Contingency Plan (NCP). The NART's request listed 33 specific topics be addressed in the report. The list of specific topics addressed in the report expanded to 56 to cover additional focus areas of the Federal On-Scene Coordinators (FOSCs)"--Executive summary.