Environmental Impact Statement

Environmental Impact Statement
Name	Environmental Impact Statement
Abbreviation	EIS
Type	Regulatory document
Jurisdiction	National and subnational
First	National Environmental Policy Act
Country	United States (origin), adopted elsewhere

Contents

Environmental Impact Statement An Environmental Impact Statement is a formal assessment document used to evaluate the potential environmental effects of major projects and policies. It originated from the United States National Environmental Policy Act and has influenced procedures in jurisdictions governed by laws such as the European Union's directives, the Canadian Environmental Assessment Act, and the Australian Environment Protection and Biodiversity Conservation Act 1999. Governments, agencies, corporations, planners, and courts rely on EISs when considering proposals like infrastructure by United States Department of Transportation, energy projects by ExxonMobil or Shell plc, and land-use changes overseen by authorities such as New York City Department of City Planning and Transport for London.

Overview

An EIS documents baseline conditions, predicts impacts, compares alternatives, and proposes mitigation for actions by entities such as the United States Army Corps of Engineers, Federal Aviation Administration, European Commission, and multinational developers like Bechtel Corporation. It often accompanies permits under statutes including the Clean Air Act, Clean Water Act, Endangered Species Act, and international agreements like the Convention on Biological Diversity. Courts— notably the Supreme Court of the United States, the European Court of Justice, and national tribunals in Canada and Australia—interpret procedural adequacy of EISs in litigation involving projects such as dams by Tennessee Valley Authority, pipelines by TransCanada Corporation, and mines by Rio Tinto.

EIS requirements derive from statutes and regulations enacted by legislatures and implemented by agencies such as the Council on Environmental Quality in the United States, the European Environment Agency in the EU context, and national bodies like Environment and Climate Change Canada. Legal doctrines from cases such as Calvert Cliffs' Coordinating Committee v. Atomic Energy Commission and Citizens to Preserve Overton Park v. Volpe shaped procedural obligations. International financing institutions, including the World Bank and the Asian Development Bank, impose safeguard policies requiring environmental assessments. Treaty processes like the Espoo Convention establish cross-border notification and transboundary EIA obligations for Parties including Finland and Russia.

Preparation typically follows scoping, baseline studies, impact prediction, alternatives analysis, and mitigation planning performed by consultants and agencies such as AECOM, Jacobs Engineering Group, and government planners in ministries like the Ministry of Environment (United Kingdom) or the United States Environmental Protection Agency. Scoping may involve stakeholders from United Nations Environment Programme, indigenous authorities like governance bodies representing First Nations, and regulatory bodies including the National Oceanic and Atmospheric Administration. Technical studies often reference standards from organizations such as International Organization for Standardization and modeling tools developed by institutes like Massachusetts Institute of Technology and National Aeronautics and Space Administration.

An EIS integrates scientific disciplines and specialist reports—ecology studies referencing species listed under the Endangered Species Act and habitat assessments for areas like the Everglades National Park, air-quality modeling under Clean Air Act criteria, noise and traffic analyses for corridors like Interstate 95, hydrology for basins like the Colorado River, and cultural resources inventories involving agencies such as the Smithsonian Institution and the National Park Service. Methodologies draw on guidance from bodies including the Intergovernmental Panel on Climate Change, United Nations Educational, Scientific and Cultural Organization, and academic research at universities such as Harvard University and University of Cambridge.

Public involvement is structured through notices in portals like those run by the United States Environmental Protection Agency, hearings before local councils such as the Los Angeles City Council, and consultations with organizations like Greenpeace and World Wildlife Fund. Administrative processes incorporate comment periods, public hearings, and revision cycles guided by procedures in statutes like the Administrative Procedure Act and supranational rules enforced by the European Commission. Tribal consultation and rights recognized under treaties involving nations such as Canada and New Zealand are often integral to the review.

Decision-makers—ministers, agency heads, licensing authorities such as the Federal Energy Regulatory Commission, and boards like the Infrastructure and Projects Authority—weigh EIS findings alongside economic assessments prepared by institutions such as the International Monetary Fund or Organisation for Economic Co-operation and Development. Mitigation can include design changes, compensatory measures negotiated with stakeholders like Local Government Association (UK), habitat restoration overseen by NGOs such as the Nature Conservancy, and legally binding monitoring programs enforced through mechanisms like permits issued under the Clean Water Act and licenses from agencies such as the Nuclear Regulatory Commission.

High-profile disputes over EIS adequacy have arisen in cases like the Dakota Access Pipeline review involving Sioux Tribe objections, litigation over the Three Gorges Dam impacts, controversies surrounding the Keystone XL pipeline, assessments for the Crossrail project in London, and projects affecting sites like Yellowstone National Park. Critics cite issues seen in inquiries into projects by BP and Chevron Corporation, alleging conflicts of interest with consultants such as major engineering firms, inadequacies noted by environmental NGOs including Friends of the Earth and legal challenges heard by courts like the Supreme Court of Canada. Reforms have been proposed drawing on recommendations from commissions such as the National Research Council and international bodies like the Organisation for Economic Co-operation and Development.