OCS Planning Area Polygons

Planning areas are used to support mostly the National Oil and Gas Program but also other BOEM Programs consisting of a schedule of lease sales indicating the size, timing and location of proposed leasing activity the Secretary of Interior determines will best meet national energy needs. For oil and gas lease sales the Program covers a five year period following its approval, and an area must be included in the current 5-Year Program in order to be offered for leasing. Section 18 of the OCS Lands Act prescribes the major steps involved in developing a 5-Year Program including extensive public comment steps. These polygons are clipped to the Submerged Land Act Boundary and Continental Shelf Boundaries. These data were created in the applicable NAD83 UTM Projection and re-projected to WGS84 Geographic. Because GIS projection and topology functions can change or generalize coordinates, these GIS files are NOT an OFFICIAL record for the exact boundaries. These files are to be used for Cartographic purposes only and should not be used to calculate area.

规划区域主要用于支撑美国国家油气计划（National Oil and Gas Program），同时也服务于其他美国海洋能源管理局（Bureau of Ocean Energy Management, BOEM）项目。此类区域配套租赁拍卖日程表，列明了内政部长认定最契合国家能源需求的拟开展租赁活动的规模、时机与地点。针对油气租赁拍卖，本计划涵盖获批后的五年周期；且拟用于租赁的区域必须纳入当前的五年计划，方可对外提供租赁。《外大陆架土地法案》（Outer Continental Shelf Lands Act, OCS Lands Act）第18条规定了制定五年计划的主要流程，其中包含多轮公众意见征询环节。本次数据集的多边形要素已依据《淹没土地法案》（Submerged Land Act）边界与大陆架边界完成裁切。这些数据最初采用适配的NAD83 UTM投影坐标系生成，后被重投影至WGS84地理坐标系。由于地理信息系统（Geographic Information System, GIS）的投影与拓扑运算可能会改变或简化坐标信息，因此本GIS文件**并非**精确边界的官方备案文件。本文件仅可用于制图用途，不得用于面积计算。