Simply stated, impact assessment is identification of future consequences of a current or proposed action.
Environmental impact assessment is currently required by laws in many nations of the world. Environmental impact assessment is an intensely interdisciplinary process that utilizes the biological, physical, and social sciences in analyzing the potential impacts of an action and in devising strategies for minimizing or preventing such impacts.
Closely related fields that are also covered in this category include life cycle analysis of products and social impact assessment.
Council on Environmental Quality's central information hub for the U.S. National Environmental Policy Act and the federal environmental impact assessment process, including environmental impact statements. ceq.eh.doe.gov/nepa/nepanet.htm
Site contains DOE NEPA regulations and guidance, text of many DOE EISs and EAs, and links to other resources on NEPA and environmental impact assessment. www.eh.doe.gov:80/nepa
Organization brings together researchers, practitioners, and users of various types of impact assessments worldwide. Find organization information, EIA resources, and links to related sites. www.iaia.org
Reports on the progress of a team effort to define a logically founded methodology for strategic environmental assessment of policies, plans and programs. Participants represent 7 European countries. www.taugroup.com/ansea
Statute, guidelines, case law, FAQs, online archive of environmental assessment reports, and other resources related to the state impact assessment law. ceres.ca.gov/topic/env_law/ceqa
Provides general background on project EIA as part of a more complex system of strategic EIA, offers a format for training needs analysis which can be used regionally, nationally and locally, and draws on a bank of training materials. www.environment.gov.au/epg/eianet/unepmanual/index.html
Overview of environmental impact assessment in Australia including legislation and agreements, notifications, practitioners and training courses. www.ea.gov.au/assessments/eianet/index.html
Ivan Bortoluzzi's website includes introductory information on environmental analysis, methodologies for impact assessment and strategic environmental assessment, and links to laws and case studies from around the world. www22.brinkster.com/greenbearib
Leiden university group, specializing in life cycle assessment and substance flow analysis. Provides information on the group, its ongoing projects and several downloadable papers and reports. www.leidenuniv.nl/interfac/cml/ssp
Comprehensive EIA resource for Canada, including EIA legislation, guidance, training opportunities, specific EIA reports and reviews, and EIA links. www.acee-ceaa.gc.ca
Site established to promote the use of LCA to aid in understanding the human health and environmental impacts of products, processes, and activities. Includes primer on LCA and links to related materials. www.epa.gov/ORD/NRMRL/lcaccess
About the agency's filing and review of US environmental impact statements (EISs), EPA compliance with NEPA, and technical assistance and capacity building for environmental compliance, enforcement, and impact assessment in other countries. www.epa.gov/compliance/nepa/index.html
Describes EIA procedures that operate in Malta, including a summary of the Environmental Statement, the terms of reference and the site plans for development applications that require an EIA. www.eia-malta.org