The National Environmental Policy Act (NEPA) affects all areas of environmental protection. ELI's updated NEPA Deskbook, 4th Edition, presents NEPA, along with supporting and related documents, and provides analysis of NEPA's provisions and their requirements. This "NEPA primer" provides an overview of the legislation, an analysis of the administrative process under NEPA, and a comprehensive examination of the courts' role in its enforcement. ELI's NEPA Deskbook, 4th Edition, also provides immediate access to the statute, relevant executive orders, regulations, and guidance materials issued by the Council on Environmental Quality and other agencies, and important judicial decisions. NEPA Deskbook, 4th Edition, is an essential resource for environmental attorneys, compliance managers, environmental consultants, or anyone who deals with environmental regulation and compliance.