This is a memorandum regarding the Incident Specific Preparedness Review for the response to the BP [British Petroleum] Deepwater Horizon oil spill. This report was chartered by the Coast Guard Commandant on June 14, 2010. The Charter provided direction for ISPR [Incident Specific Preparedness Review] team membership, scope of the review, and reporting deadlines. The purpose of this report is to examine the implementation and effectiveness of the preparedness and response to the BP Deepwater Horizon incident as it related to the National Contingency Plan, Area Contingency Plans, and other oil spill response plans. [...] This report addresses specific areas of the response to the Deepwater Horizon oil spill. It is divided into three main chapters: Planning and Plan Execution, Organization, and Resources and Readiness, with each chapter encompassing several focus areas. Each focus area provides a list of lessons learned and recommendations. This report does not address the causal factors leading up to the explosion and sinking of the Deepwater Horizon, nor does it include topics being addressed by other Federal investigations.