OPPTS Chemical Library - Office of Pollution Prevention and Toxics. Washington, DC. Environmental Sciences Division - Technical Research Center, Las Vegas, Nevada. National Service Center for Environmental Publications - More than 7,000 in stock and 24,000 digital titles are available to search and retrieve, download, print and/or order from the National Service Center for Environmental Publications (NSCEP). Research Triangle Park Library - Provides information about the Library's collection, services, and policies. Located in Research Triangle Park, NC. Congressional & Intergovernmental Relations - 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. Region 1 Library - Serving Connecticut, Massachusetts, Maine, New Hampshire, Rhode Island and Vermont. Lists hours and policies. Located In Boston. Region 3 Library - Serving Maryland, Pennsylvania, Rhode Island, Virginia, and West Virginia. Includes policies, hours and contacts. Located in Philadelphia. Region 2 Library - Serving New York, New Jersey, Puerto Rico, and the US Virgin Islands. Find hours of operation, policies and contact. Region 4 Library Services - Serving Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina and Tennessee. Hours of operation, policies and Atlanta location. Region 8 Technical Library Services - Serving Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming. In Denver, Colorado. Find hours of operation, policies and Denver contact information. Andrew W. Breidenbach Environmental Research Center (AWBERC) - Provides hours of operation, policies and Cincinnati contact information. Region 9 Library - Serving Arizona, California, Hawaii, Nevada, the Pacific Islands subject to U.S. law, and approximately 140 Tribal Nations. Includes policies, hours of operation and San Francisco contact information. Gulf Ecology Division Library Services - Open by appointment at Pensacola Beach, Florida. Includes hours of operation, subject areas of the collection, history of the library and contacts. Research Triangle Park Library Services - Includes hours of operation, policies and contact. Located in Research Triangle Park, North Carolina. Environmental Science Center Library Services - Center in Ft. Meade, Maryland includes hours of operation and borrowing policy. National Enforcement Investigations Center Library - Contains information about the NEIC and its activities related to environmental enforcement. EPA Online Library System (OLS) - Online catalog containing the holdings of EPA libraries.