OCS Marine Minerals Lease Areas

The Federal Outer Continental Shelf (OCS) Marine Mineral (e.g. sand and gravel) Lease Areas layer is maintained by the Bureau of Ocean Energy Management (BOEM), part of the U.S. Department of the Interior. Each lease area polygon defines an area where entities that have entered into or have formally requested a Negotiated Non-Competitive Lease or Memorandum of Agreement with BOEM can dredge sand, gravel, or shell resources from the OCS. Section 8 (k) of the OCS Lands Act (OCSLA), as amended by Public Law 103-426 (enacted in 1994), gives BOEM the authority to negotiate an agreement for the use of OCS sand, gravel, and shell resources for use in: (1) a project for shore protection, beach restoration, or coastal restoration undertaken by a Federal, State, or local government agency; or (2) for use in a construction project funded in whole or in part by, or authorized by, the Federal government. This dataset is a collection of active, completed, expired, and proposed lease areas under BOEM's purview. Attribution consists of OCS lease number, state, project ID, volume of material allocated, borrow area ID, leases status, and administrative chronology of the lease term (e.g. execution and expiration dates). Revisions to this dataset are made on a regular basis by BOEM staff to reflect the current status of OCS marine mineral leasing activity. The Bureau of Ocean Energy Management (BOEM) provides the data for use "as is". BOEM provides this information with the understanding that it is not guaranteed to be accurate, correct or complete and conclusions drawn from such information are the responsibility of the user. While every effort has been made to ensure the accuracy, correctness and timeliness of materials presented within the limits of the current state of the art, BOEM assumes no responsibility for errors or omissions, nor as a result of the failure of the data to function on a particular system. BOEM makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from or actions undertaken on the basis of, such data and information are the sole responsibility of the user. The maps shown here are for illustration and planning purposes only and are not suitable for site-specific decision making. The data are not suitable for navigational purposes. Information found here should not be used for making financial or any other commitments. This data was developed by the U.S. Government; no other proprietary rights may be attached to them nor may they be sold to the U.S. Government as part of any procurement of products or services. Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the Bureau of Ocean Energy Management (BOEM) as the source of this information.美国联邦外大陆架（Outer Continental Shelf, OCS）海洋矿产（如砂石、贝壳）租赁区域图层由美国内政部下属的海洋能源管理局（Bureau of Ocean Energy Management, BOEM）维护。每个租赁区域多边形划定了已与BOEM签订或正式申请协商性非竞争性租赁协议或合作备忘录的实体，可在外大陆架区域疏浚砂石、贝壳资源的范围。经1994年颁布的《公法第103-426号》修订的《外大陆架土地法案》（OCS Lands Act, OCSLA）第8(k)条，授予BOEM协商使用外大陆架砂石、贝壳资源的权限，用于以下两类场景：(1) 联邦、州或地方政府机构开展的海岸防护、海滩修复或海岸修复项目；(2) 全部或部分由联邦政府资助、或经联邦政府授权的建筑工程。本数据集收录了BOEM管辖范围内的有效、已完成、已过期及拟议中的租赁区域，其属性信息包括OCS租赁编号、所属州、项目ID、分配材料体量、疏浚取料区ID、租赁状态以及租赁期限的行政时序（例如签署日期与过期日期）。BOEM工作人员会定期对本数据集进行修订，以反映外大陆架海洋矿产租赁活动的最新状态。海洋能源管理局（BOEM）按“现状”提供本数据。BOEM提供本信息时明确，不对其准确性、正确性或完整性作出保证，用户需自行承担基于该信息得出结论的责任。尽管已尽一切努力在当前技术水平范围内确保所呈现材料的准确性、正确性与时效性，但BOEM不对错误或遗漏承担责任，亦不对数据在特定系统中无法运行的后果承担责任。BOEM未作出任何明示或默示的担保，且数据分发的事实本身并不构成此类担保。请用户在将这些数据和信息用于涉及个人或公共安全，或涉及重大资金或运营后果的商业决策前，仔细考量其临时属性。基于此类数据和信息得出的结论或采取的行动，其责任完全由用户自行承担。此处展示的地图仅用于说明与规划用途，不适用于特定场地的决策制定。本数据不适用于导航用途。此处的信息不得用于作出财务或其他承诺。本数据由美国政府开发，不得附加任何其他专有权利，亦不得在任何产品或服务采购中作为一部分向美国政府出售。美国政府的公共领域数据可在附带适当元数据与来源标注的前提下自由再分发。请确认海洋能源管理局（BOEM）为本信息的来源。