Increasing numbers of federal documents have become available and can be obtained on the internet and by phone.
Government Printing Office: Provides government documents including information from federal agencies and many non-Congressional materials. Fees may apply to orders. To obtain materials, visit their website: www.gpoaccess.gov, or call (202) 512-1800.
Library of Congress: http://thomas.loc.gov
House of Representatives Document Room: Provides many Congressional documents free of charge. To obtain materials, call (202) 226-5200.