20/20 Vision - "20/20 Vision empowers citizens to speak out for a clean environment and a world free of weapons of mass destruction."

American Society of International Law Wildlife Interest Group - The ASIL Wildlife Interest Group focuses on the effectiveness of international wildlife law.

Capitol Reports: Environmental News Link - This directory contains links to states with legislative information available online.

Center for Environmental Law and Policy - works to protect and restore the natural integrity and enjoyment of Washington's waters.

Center for Health, Environment and Justice - founded in 1981, as the Citizens Clearinghouse for Hazardous Waste (CCHW), by Lois Gibbs community leader at Love Canal.

Center for International Environmental law - A public interest, not-for-profit firm specializing in trade and the environment, biodiversity,international financial institutions, global commons, and policy analysis.

Citizens for Pennsylvania's Future - Pittsburgh - PennFuture advances effective solutions for the problems of pollution, sprawl and global warming; mobilizes citizens; crafts compelling communications; and provides excellent legal services and policy analysis.

Earthjustice Legal Defense Fund - Earthjustice Legal Defense Fund, formerly the Sierra Club Legal Defense Fund, is the law firm for the environment.

Environhealthaction - "A place where the health community can learn and take action."

Environmental Advocates - serves the people of New York as an effective and aggressive watchdog and advocate on virtually every important state environmental issue.

The Environmental Council of the States - the national non-profit, non-partisan association of state and territorial environmental commissioners.

Environmental Law Alliance Worldwide (E-LAW) - Protecting the environment through law across borders.

Environmental Law Institute - ELI researches pressing problems, educates professionals and citizens about the nature of these issues, and convenes all sectors in forging effective solutions.

Environmental Protection - "Management and problem solving for environmental professionals."

EPA - "Laws and regulations are a major tool in protecting the environment."

Inter-American Water Resource Network - "information on environmental legislation for countries of the Western Hemisphere. Please watch this page for updates"

International Water Law Project - website was created to provide pertinent information on international water law and policy and related topics.

National Association of Environmental Law Societies (NAELS) - The umbrella organization for environmental law societies in the United States. Committed to improving the educational experiences of environmental law students nationwide.

National Environmental Trust - NET is dedicated to educating the American public on contemporary environmental issues.

National Resources Defense Council - "NRDC's legislative team is dedicated to protecting and building upon this framework of environmental law."

Planning and Conservation League - 'We are a non-profit organization located in Sacramento that addresses environmental issues on a statewide level through advocacy in the State legislature and government and through legal action when needed to protect California`s natural resources.'

Project On Government Oversight - Founded in 1981, the Project On Government Oversight's (POGO) mission is to investigate, expose, and remedy abuses of power, mismanagement, and subservience by the federal government to powerful special interests.

Public Citizen - a national, nonprofit consumer advocacy organization founded by Ralph Nader in 1971 to represent consumer interests in Congress, the executive branch and the courts.

REP AMERICA (Republicans for Environmental Protection) - National grassroots organization of Republican voters that promote strong environmental laws, endangered species protection, and responsible public land management.

The Right-to-know Network - provides free access to numerous databases, text files, and conferences on the environment.

USGS - "USGS guide to federal environmental laws and regulations"

U.S. Department of Energy - Department of Energy

USGS - USGS guide to federal environmental laws and regulations.

U.S. Governmental Protection Agency - Federal Agency

Wildlife Advocacy Project - a non-profit advocacy group founded by the public interest law firm, Meyer & Glitzenstein, to assist grassroots activists in achieving long-term protection of wildlife and the environment, and in stopping the abuse and exploitation of animals held in captivity.