U.S. EPA Headquarters Information Resources Center
The EPA Headquarters Information Resources Center provides reference assistance to the public and EPA staff.

OPPTS Chemical Library
Office of Pollution Prevention and Toxics. Washington, DC.

Office of Air Quality Planning and Standards (OAQPS ) Library
Research Triangle Park, North Carolina.

U.S. EPA National Enforcement Investigations Center Library
This website contains information about the National Enforcement Investigation Center (NEIC) and its activities related to environmental enforcment. It also has information regarding the NEIC organization, highlights, library information sources and publications.

Gulf Ecology Division Library
Gulf Breeze, Florida.

Region 1 Library
Serving Connecticut, Massachusetts, Maine, New Hampshire, Rhode Island and Vermont. In Boston, Massachusetts.

Region 2 Library
Serving New York, New Jersey, Puerto Rico, and the US Virgin Islands. In New York, New York.

Region 5 Library
Serving Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin. In Chicago, Illinois.

Region 9 Library
Serving Arizona, California, Hawaii, Nevada, the Pacific Islands subject to U.S. law, and approximately 140 Tribal Nations. In San Francisco, California.

Region 6 Library
Serving the states of Arkansas, Louisiana, New Mexico, Oklahoma and Texas. In Dallas, Texas.

Region 4 Library
Serving Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina and Tennessee. In Atlanta, Georgia.

Region 8 Technical Library
Serving Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming. In Denver, Colorado.

Region 8 Environmental Information Service Center
Serving Colorado, Montana, North Dakota, South Dakota, Utah and Wyoming. In Denver, Colorado.

Legislative Reference Library
Washington, DC. Includes copies or summaries of the legislation that created EPA and the statutes it enforces, Congressional Record summaries, and information on pending legislation.

Region 10 Library
Serving Alaska, Idaho, Oregon, the Puget Sound, and the state of Washington. In Seattle, Washington.

Environmental Science Center Library - Ft. Meade, MD
Includes descriptions of library contents by category. Library is the environmental reference source for the Environmental Science Center and the following states in Region 3: DE, Washington DC, MD, PA, VA, and WV.

Region 7 Library
Iowa, Kansas, Missouri, and Nebraska. In Kansas City, Kansas.

Region 3 Library
Serving Maryland, Pennsylvania, Rhode Island, Virginia, and West Virginia. In Fort Meade, Maryland.

Environmental Protection Agency - RTP Library
The EPA-RTP library offers access to the online catalog, the technology transfer network, EPA testing methods, and EPA publications.

Environmental Sciences Division
Technical Research Center, Las Vegas, Nevada.

Andrew W. Breidenbach Environmental Research Center (AWBERC)
Library located in Cincinnati, Ohio.

Mid-Continent Ecology Division Library
Duluth, Minnesota. Focus of collection is freshwater ecology and pollution.

Research Library for RCRA
Established by Region 1 as part of the Resource Conservation and Recovery Act (RCRA) Program. In Boston, Massachusetts.